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【单选题】
( ) 39. The World Wetlands Day is on _______.    A.February 2        B.June 25   C.April 22      D.March
A. A
B. B
C. C
D. D
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答案
A
解析
A
相关试题
【单选题】
( ) 40. We must protect wetlands because _______. A.they are home for wildlife   B.they can prevent flood    C.they can offer food to the animals and birds D.all of the above
A. A
B. B
C. C
D. D
【单选题】
) 1. —Is it far from here to the bank? —Not very, only________. A. 20 minute’s walk B. 20 minutes walk C. 20 minutes’ walk D. 20 minutes’ walks
A. A
B. B
C. C
D. D
【单选题】
2. — After discussing, the students ________ some good ideas to work on the project. — Thats great! A. put up B. set up C. caught up with D. came up with
A. A
B. B
C. C
D. D
【单选题】
3. Yesterday Tommy walked past my table and ______ my bowls and dishes. He should be careful next time. A. knocked off B. took off C. showed off D. turned off
A. A
B. B
C. C
D. D
【单选题】
4.We don’t have enough nurses to look after patients.At least ___ nurses are needed. A. ten another B. more ten C. another ten D. other ten
A. A
B. B
C. C
D. D
【单选题】
5. — Zhao Rui, it’s said that many famous singers will come to Yangzhou on April 18th. How about watching the evening show there? —________! Let’s ask Huang Tao to go with us. A. Best wishes B. Sounds great C. Good luck D. That’s OK
A. A
B. B
C. C
D. D
【单选题】
6.—Hello! This is Henry Speaking.I’d like to speak to your father. —Sorry, he has Shanghai. A. been in B. been to C. come to D. gone to
A. A
B. B
C. C
D. D
【单选题】
7. — It’s difficult for the village children to cross the river for school. — I think a bridge ______ over the river. A. was built B. is being built C. has been built D. should be built
A. A
B. B
C. C
D. D
【单选题】
8. —Where would you like to go, Jinan or Qufu? — .I only want to go to Qingdao. A. Each B. Either C. Neither D. All
A. A
B. B
C. C
D. D
【单选题】
9 — The documentary A Bite Of China II is quite popular around China recently. How do you like it? ______. A. I think so B. Pretty good C. Its my pleasure D. All right
A. A
B. B
C. C
D. D
【单选题】
10. There are three English-books on the shelf, but ______ of them is mine. A. both B. neither C.all D. none
A. A
B. B
C. C
D. D
【单选题】
11. When the parents arrived at the hall, the students _______ their projects. A. have finish B. finished C. had finished D. are finishing
A. A
B. B
C. C
D. D
【单选题】
12. This week, the _______ seems to change every day: one day is hot; the next day is cold. A. time B. weather C. season D. way
A. A
B. B
C. C
D. D
【单选题】
13. He never does his work _______ Mary.    A. as careful as B. so careful as C. carefully as D. as carefully
A. A
B. B
C. C
D. D
【单选题】
14. — Can he jump high? — Yes, he ______. He is a good high jumper. A. must B. need C. can D. shall
A. A
B. B
C. C
D. D
【单选题】
15. The shop _____ at 8:00 a.m.and it ________ for ten hours every day. A. is open; has opened B. is opened; opens C. opens; is open D. opened; opens
A. A
B. B
C. C
D. D
【单选题】
16. —Excuse me, may I use your bicycle? ______ is broken. Certainly. But remember to return it before lunch. A. Mine B. Me C. Myself D. I
A. A
B. B
C. C
D. D
【单选题】
17. Simon, what do I need to take for the hiking? Youd better ________ more water than usual. Its hot today. A. to take B. taking C. take D. took
A. A
B. B
C. C
D. D
【单选题】
18. Helen ______ to a language school when she was seven. A. sent B. is sent C. will send D. was sent
A. A
B. B
C. C
D. D
【单选题】
19. — Is this park youve visited recently? — Yes, it's the most beautiful one Ive ever visited before. A. that B. the one C. which D. the one which
A. A
B. B
C. C
D. D
【单选题】
20. — Its difficult for the village children to cross the river for school. — I think a bridge ________ over the river. A. should be built B. is being built C. has been built D. was built
A. A
B. B
C. C
D. D
【单选题】
21. — Could you tell me when Mr. Li ________ in Huaibei?    — Sure..When he ________, I’ll call you.    A. arrives; will arrive B. will arrive; will arrive C. arrives; arrives D. will arrive; arrives
A. A
B. B
C. C
D. D
【单选题】
22.There is ________ 800-metre-long road behind ________ hospital. A. an; an B. an; the C. a; a D. a; the
A. A
B. B
C. C
D. D
【单选题】
23. — Did you see a girl in yellow pass by just now? — No, sir. I ________ a magazine. A. read B. am reading C. was reading D. would read
A. A
B. B
C. C
D. D
【单选题】
24.In fact, my parents are not only kind to me, but also strict ________ me. A. at B. to C. for D. with
A. A
B. B
C. C
D. D
【单选题】
25. The boy_____ a yellow sweater can_____ himself now. A. wearing; dress B. putting on; wear C. put on; dress D. dressing;
A. A
B. B
C. C
D. D
【单选题】
( ) 26. Where does the writer of "The little Prince" come from? A.England. B.France. C.America. D.China.
A. A
B. B
C. C
D. D
【单选题】
( ) 27. What does the prince do after the fox tells him a secret? A.He cares more about a flower and a sheep. B.He meets many more strange adults on other planets. C.He realizes his love for the rose and he goes back to his planet.   D.He discovers interesting things such as a snake, other roses and a fox.
A. A
B. B
C. C
D. D
【单选题】
( ) 28. What does "The little Prince" mainly talk about? It' s about _________. A.the adult world B.the planet B -612 C.a rose and a fox D.the adventure of a young
A. A
B. B
C. C
D. D
【单选题】
( ) 29. When a baseball player hits the ball, he must ______ to get a point. A. run to each base freely B. touch the home plate first C. touch all the bases with his hands D. run to each base in order and touch it with his foot
A. A
B. B
C. C
D. D
【单选题】
( ) 30. When was the importance of touching all the bases shown? A. Before the baseball rules made. B. At the end of the 1974 baseball seasons. C. At the start of the 1974 baseball seasons. D. In the second week of 1974.
A. A
B. B
C. C
D. D
【单选题】
( ) 31. Who hit home run number 715? A. Babe Ruth. B. Hank Aaron. C. Babe Ruth’s partner. D. Hank Aaron’s friend.
A. A
B. B
C. C
D. D
【单选题】
( ) 32. What does the expression “to touch all bases” mean? A. To try your best to set a new record. B. To get a chance to be the greatest hitter. C. To do what is needed to finish an activity. D. To solve the problems successfully.
A. A
B. B
C. C
D. D
【单选题】
( ) 33. The Chinese Yellow Sea Wetlands are in the _______ of China.    A.south           B.east    C.west            D.north
A. A
B. B
C. C
D. D
【单选题】
( ) 34. Usually the weather in the wetlands is _______.    A.hot             B.pleasant   C.cold            D.dry
A. A
B. B
C. C
D. D
【单选题】
( ) 35. The World Wetlands Day is on _______.    A.February 2        B.June 25   C.April 22      D.March 22
A. A
B. B
C. C
D. D
【单选题】
( ) 36. We must protect wetlands because _______. A.they are home for wildlife   B.they can prevent flood    C.they can offer food to the animals and birds D.all of the above
A. A
B. B
C. C
D. D
【单选题】
( ) 37.The greatest river for navigation is ___________. A. the Nile B. the Amazon C. the Mekong D. the Mississippi
A. A
B. B
C. C
D. D
【单选题】
( ) 38. From a dam, people can use the water for ___________. A. keeping the rivers clean B. only making electricity C. irrigation and making electricity D. washing clothes
A. A
B. B
C. C
D. D
【单选题】
( ) 39. The water in the river is polluted because of _____________. A. people's drinking water too much B. people's swimming in the river too much C. chemicals and other materials D. people's building a dam across a river
A. A
B. B
C. C
D. D
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A. 使布水均匀;
B. 备用树脂;
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D. 利于成床。
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溶液的摩尔浓度是指___。
A. 1ml溶液中所含溶质的物质的量;
B. 10ml溶液中所含溶质的物质的量;
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【单选题】
新树脂在进行预处理时,用酸浸泡清洗至中性的目的是除去树指中的___。
A. 残留碱;
B. 有机杂质;
C. 胶体;
D. 无机杂物。
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离子交换法除盐除去的盐类为___。
A. 水中悬浮物;
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D. NaCl。
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A. 增加设备出力;
B. 提高产水品质;
C. 清除垢物;
D. 清除积留在管路系统内的残留杂物。
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A. Mg;
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A. 小反洗;
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D. 正洗。
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B. 5套;
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D. 3套。
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A. NaOH溶液;
B. 饱和食盐水;
C. HCl溶液;
D. 除盐水。
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下列酸中,酸性最强的是___。
A. 盐酸;
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C. 醋酸;
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C. 盘根太紧;
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用盐酸作逆流再生的强酸性阳离子交换树脂,其再生比耗为___。
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D. 1。
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A. 压实;
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C. 弹簧式安全阀;
D. 脉冲式安全阀。
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A. 相同;
B. 相反;
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【单选题】
离子交换器运行中,从阴离子交换剂置换下来的是___。
A. 氢离子;
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C. 氯离子;
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【单选题】
压力表的量程最好选为容器工作压力的___倍。
A. 1.05;
B. 1.1;
C. 1.5;
D. 2。
【单选题】
树脂201×7中的“7”是指树脂的___。
A. 密度;
B. 聚合度;
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D. 粒度。
【单选题】
混床的中间配水装置位于___。
A. 混床罐体的中间;
B. 分层后阳离子交换树脂侧;
C. 分层后阴离子交换树脂侧;
D. 分层后阴阳离子交换树脂交界处。
【单选题】
古雷项目化学水处理站浮动床属于___。
A. 逆流再生床;
B. 顺流再生床;
C. 串联再生床;
D. 体外再生。
【单选题】
阴离子交换树脂受污染后,出现一些特征,下面叙述错误的是___。
A. 树脂的交换容量下降;
B. 树脂的颜色变深;
C. 再生后正洗时间延长;
D. 出水显酸性。
【单选题】
1泵和2泵投入“连锁”,一般指___。
A. 1(2)泵故障后,2(1)泵自动投入运行;
B. 1(2)泵故障与否,2(1)泵都能自动投入运行;
C. 12如投入运行必须同时投入,否则无法启动;
D. 1泵投入与否,与2投入运行无关。
【单选题】
离子交换处于离子交换带的移动阶段中,树脂层形成的三层中不存在___。
A. 再生层;
B. 失效层;
C. 工作层;
D. 保护层。
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