【单选题】
中国传统文化对人类文明贡献巨大。下列两篇古代文献中都涉及到了KNO3。文献①:《开宝本草》记载:(KNO3)所在山泽，冬月地上有霜，扫取以水淋汁后，乃煎炼而成”，文献②《本草纲目》“火药乃焰硝(KNO3)、硫黄、山木炭所合，以为烽燧餇诸药者。”下列对其解释不合理的是（ ）
A. 文献①中提取KNO3利用了溶解、蒸发结晶的实验过程
B. 用文献①中方法制取KNO3是因为KNO3的溶解度受温度影响不大
C. 文献②中火药的使用体现了硝酸钾的氧化性
D. 文献②中使用火药的产物会污染环境
查看试卷，进入试卷练习
微信扫一扫，开始刷题
相关试题
【单选题】
化学与生产、生活密切相关。下列说法正确的是( )
A. 使用含有氯化钙的融雪剂会加快桥梁的腐蚀
B. 自来水含“氟”时不能饮用，因为氟对牙齿、骨骼等有害
C. 纳米铁粉通过物理吸附可除去污水中的Pt2＋、Cu2＋、Cd2＋、Hg2＋等
D. 海洋中含有丰富的矿产资源，仅利用物理方法可以获得NaCl、Br2和Mg
【单选题】
《中国诗词大会》不仅弘扬了中国传统文化,还蕴含着许多化学知识,下列诗词分析不正确的是( )
A. 李白诗句“日照香炉生紫烟,遥看瀑布挂前川”, “紫烟”的产生与光学现象有关
B. 刘禹锡诗句“千淘万漉虽辛苦,吹尽狂沙始到金”,金是通过化学反应得到的
C. 王安石诗句“爆竹声中一岁除,春风送暖入屠苏”,爆竹的燃放涉及氧化还原反应
D. 曹植诗句“煮豆燃豆萁,豆在釜中泣”,这里的能量变化主要是化学能转化为热能
【单选题】
下列有关金属的工业制法中,正确的是( )
A. 以海水为原料制得精盐,再电解精盐的水溶液制取钠
B. 用海水、石灰乳等为原料,经一系列过程制得氧化镁,用H2还原氧化镁制得镁
C. 以铁矿石、焦炭、空气、石灰石等为原料,通过反应产生的CO在高温下还原铁矿石制得铁
D. 从铝土矿中获得氧化铝再制得氯化铝固体,电解熔融的氯化铝得到铝
【单选题】
聚丙烯树脂中挥发份含量高时，制品中易出现___。
【单选题】
配置好的主催化剂膏通过___计量输送至D201。
【单选题】
DONOR-D的名称是___。
A. 环己基甲基二甲氧基硅烷
B. 二环戊基二甲氧基硅烷
C. 二环戊基甲基二甲氧基硅烷
【单选题】
吸入高浓度抗结垢剂会对___造成损伤。
【单选题】
三乙基铝泄漏着火时，可以用___灭火。
A. 泡沫灭火器
B. 四氯化碳
C. 干粉灭火器
【单选题】
催化剂浆料配制过程中，满足___条件后，HS-10304打开HV-10304。
A. 0.2KPa＜氮气至D106压力＜5KPa
B. 氮气至D106压力＜0.2KPa
C. 氮气至D106压力＞5KPa
【单选题】
D108A/B至D201主cat管线采用___伴冷。
【单选题】
原始开工时主催化剂系统联锁调校可用___。
【单选题】
主催化剂是一种粉状固体，使用___悬浮催化剂。
A. 已烷
B. 油脂混合物
C. 白油
D. 脂
【单选题】
催化剂预接触罐夹套中的螺旋板的作用是___。
A. 延长冷却时间，增强冷却效果
B. 延长冷却时间，减弱冷却效果
C. 缩短冷却时间，增强冷却效果
D. 缩短冷却时间，减弱冷却效果
【单选题】
Atmer-163对___有腐蚀作用。
【单选题】
三乙基铝计量泵在启动时应___。
A. 关闭进口阀打开出口阀
B. 打开进口阀，关闭出口阀
C. 打开进出口阀
D. 关闭进、出口阀
【单选题】
TEAL区冲洗TEAL后的白油收集到___。
【单选题】
下列哪个罐的氮封尾气不能进入D114中___。
A. D110
B. D112
C. D105
D. D106
【单选题】
催化剂预接触罐D201夹套介质符号是___。
【单选题】
三乙基铝计量罐的现场液位计一般采用的是___液位计。
A. 玻璃板
B. 磁浮子
C. 浮筒
D. 差压
【单选题】
主催化剂发生火灾时，不能用___灭火。
【单选题】
计量给电子体的流量计一般采用___。
A. 质量流量计
B. 孔板流量计
C. 电磁流量计
【单选题】
三乙基铝单元所用的灭火器材属于___。
A. 干粉灭火器
B. 泡沫灭火器
C. 二氧化碳灭火器
【单选题】
配制催化剂时抽真空时只打开___其它阀门是关闭的。
A. HV10304阀
B. HV10303阀
C. HV10302阀
D. HV10306阀
【单选题】
助剂中能去除原料中杂质的是___。
A. TEAL
B. DONOR
C. ATMER163
【单选题】
丙烯的爆炸极限为：___。
A. 4.1～74.2％
B. 2.7～36.0％
C. 2.0～11.1％
【单选题】
三乙基铝系统所采用的伴热方式为：___
【单选题】
使用D-DONOR时，氢气加入量应该比使用C-DONOR：___。
【单选题】
催化剂分散罐D106A系统中___是安全排放阀。
A. HV10304A
B. HV10305A
C. HV10306A
【单选题】
催化剂分散罐D106B系统中___是氮封阀。
A. HV10304B
B. HV10305B
C. HV10306B
【单选题】
TEAL进料量是按一定比例和___串级控制进料量的。
A. FIC20003
B. FIC20004
C. FIC20301
【单选题】
用于悬浮催化剂配置的油/脂比例一般是___。
A. 1：1
B. 2：3
C. 7：3.5
D. 3：4
【单选题】
TEAL/DONOR的比值依据产品牌号而定，该比值的范围一般是___。
A. 10-15
B. 15-20
C. 15-30
D. 20-40
【单选题】
TEAL催化剂由D111转移至D101是通过___。
A. N2压送
B. P104
C. P102
D. P108
【单选题】
当S103液位高报时，液位开关通过联锁___切断向D101的进料 。
【单选题】
TEAL计量泵为：___。
A. 隔膜泵
B. 齿轮泵
C. 屏蔽泵
D. 离心泵
【单选题】
工艺上常用___表示含水气体的水含量。
A. 百分比
B. 密度
C. 摩尔比
D. 露点
【单选题】
给电子体系统停车时先关闭___后，才能停泵。
A. 给电子体进预接触罐管线上的手阀
B. 泵的入口阀
C. 泵的出口阀
D. 流量计的前后手阀
【单选题】
自D108入口的取样点为___。
A. AC18
B. AC8
C. AC15
D. AC30
【单选题】
配置催化剂时D106需要升温到多少度___。
推荐试题
【单选题】
It is surprising that fewer students were prepared to undertake the ___ to hand in written work on a regular basis, or to study over long periods.
A. engagement
B. commitment
C. authority
D. aspiration
【单选题】
Emily felt hurt and ___ by a close friend who had borrowed a considerable sum of money to pay for a house and then took it as a gift, never thinking of giving back the money.
A. conflicted
B. curbed
C. swollen
D. betrayed
【单选题】
In 1988 the old system was ___ in the country and a new system was introduced to take effect in 1990.
A. transmitted
B. abolished
C. assumed
D. compensated
【单选题】
We should not ___ ourselves to the classroom. We should go out of the classroom, see the world and talk to others as much as we can.
A. entertain
B. confine
C. assign
D. involve
【单选题】
I have always been grateful ___ Fred __the generous and helpful information when I was at the crossroads.
A. to … for
B. to … with
C. for … with
D. for … to
【单选题】
I think we both need to ___ the past, be happy about what we had for a time, learn from our experiences, and move on from there.
A. let go of
B. give authority to
C. make sense of
D. keep up with
【单选题】
My brother and I managed to ___ with each other and we soon made peace after a week’s quarrel.
A. heal
B. reconcile
C. respond
D. advocate
【单选题】
The two robbers in a stolen car tried to ___ a police roadblock (路障), but faile D.
A. break in
B. break off
C. break up
D. break through
【单选题】
Because of his long illness, Lee’s English level had dropped, but he was determined to ___ the other students by working harder.
A. put up with
B. catch up with
C. get along with
D. fill up with
【单选题】
We appreciate your efforts in making changes in your schedule and think that this new arrangement is now ___ to us.
A. agreeable
B. sustainable
C. portable
D. indispensable
【单选题】
The woman who died in a car crash last Saturday in the suburbs has been ___ as Kate Johnson, a 25-year-old office clerk.
A. justified
B. identified
C. notified
D. classified
【单选题】
My nephew failed in the College Entrance Examination, and we were all very sorry that he did not ___ to the university.
A. take it
B. get it
C. make it
D. succeed it
【单选题】
Almost half of that group will experience stress ___ enough to call for professional help.
A. tense
B. moderate
C. bearable
D. intense
【单选题】
If you grow too fast your entire economy could completely shut down and bring growth to a(n) ___.
A. halt
B. cease
C. peak
D. epidemic
【单选题】
I tried my best to drive inside in order to avoid the edges that might make me ___ the steep slope.
A. slip down
B. settle down
C. bring down
D. turn down
【单选题】
When the driver heard that there was a bomb on the bus, he immediately ___ to the side of the highway and radioed the police.
A. put out
B. took off
C. pulled over
D. slipped off
【单选题】
She was very ___ to become a manager in our customers’ office, but finally accepted our offer.
A. eager
B. intelligent
C. ridiculous
D. reluctant
【单选题】
In the race, it looked as if he would be the first, but then another young man who was close behind him put on speed and ___ by a few seconds.
A. beat him for it
B. beat him to it
C. beat him up
D. beat it to him
【单选题】
It is really helpful to have someone like you that we can ___ and count on during difficult times.
A. lean on
B. get to
C. hang on
D. get by
【单选题】
Women have a greater ability to ___ names with faces than men do, and they are also better at recalling lists.
A. associate
B. compare
C. engage
D. involve
【单选题】
He was always ready to help others and managed to ___ his friends ____being hurt.
A. expose … to
B. confine …to
C. restrict … from
D. shield … from
【单选题】
Older people are less likely to be ___ their negative emotions (情绪) and more likely to focus on the positive.
A. reserved for
B. caught up in
C. beat up to
D. counted on
【单选题】
I don’t have any bandage, so I have to ___ pressure to the wound to keep the bleeding down.
A. apply
B. involve
C. fulfill
D. establish
【单选题】
It is important that whichever candidate (候选人) is picked the loser should accept the defeat ___.
A. in advance
B. with great pride
C. with good grace
D. in large part
【单选题】
___ that new homes cost more than older homes, but that is not true across the country anymore.
A. It used to be
B. It is used to be
C. It used to being
D. It is used to being
【单选题】
The boss ___ his employees to work longer hours as the company is dreadfully short of staff at present.
A. called on
B. signed up
C. cared for
D. set up
【单选题】
The president’s visit and ___ discussions led to a plan that aimed to improve the trade relations between the two countries.
A. emerging
B. subsequent
C. consequent
D. Submerging
【单选题】
The author ___ his general idea mainly through statistics and results obtained from a survey (调查) about auto customer services in the United States.
A. assumes
B. engages
C. illustrates
D. represents
【单选题】
People in this town starved, several buildings were bombed and crime ___ because you had to steal to eat.
A. eroded
B. reflected
C. released
D. soared
【单选题】
Olympic recognition for bodybuilding (健美) remains ___ since some argue that bodybuilding is not a sport because the actual contest does not involve the same sort of efforts as “real” sports.
A. controversial
B. conventional
C. characteristic
D. influential
【单选题】
Tom tried to justify his absence from the meeting by ___ that he had been ill that day.
A. admitting
B. advocating
C. claiming
D. citing
【单选题】
___ the huge financial benefits, biological companies have been rushing to set up laboratories and new research projects.
A. Aware
B. Aware of
C. Not aware
D. Not aware of
【单选题】
Unfortunately, ___ lack of funds, the studies he began just two months ago, had to be ended early.
A. out of
B. in addition to
C. owing to
D. to begin with
【单选题】
With a good command of English, he soon got ___ to working with British people.
A. accustomed
B. consistent
C. relevant
D. responsible
【单选题】
What needs to be ___ here is that language and culture interact, and that understanding of one requires understanding of the other.
A. altered
B. stressed
C. aroused
D. committed
【单选题】
Policies and organizations must be created to meet workers’ hopes, and to ___ new problems that inevitably arise between workers and managers.
A. compromise
B. ensure
C. undermine
D. resolve
【单选题】
To keep the wheels of industry turning, we produce consumer goods in endless quantities, and, in the process, are rapidly ___ our natural resources.
A. ignoring
B. collapsing
C. enduring
D. exhausting
【单选题】
As a person who loves peace, he is committed ___ realizing peace between countries.
A. of
B. about
C. for
D. to
【单选题】
Learning how to use chopsticks is easy for me, ___ learning how to conduct myself at the table is quite difficult.
A. whereas
B. however
C. therefore
D. besides
【单选题】
___ that the patient smokes 50 cigarettes a day, it would be reasonable to assume there is some lung damage.
A. To give
B. Giving
C. Given
D. Having given
