【单选题】
As a person who loves peace, he is committed ___ realizing peace between countries.
A. of
B. about
C. for
D. to
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相关试题
【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
【单选题】
Kenyan (肯尼亚的) women tend to vote for those who could provide them ___ the necessary food to live on.
A. of
B. with
C. for
D. about
【单选题】
___ all obstacles and failures, the scientist continued doing his experiments day and night.
A. In spite of
B. In contrast to
C. As a matter of
D. As a result of
【单选题】
I’m willing to ___ that a larger car would have cost more, but I still think we should have bought one.
A. withdraw
B. indicate
C. abandon
D. concede
【单选题】
Manufacturing (制造) companies spend millions of pounds on advertisements, trying to ___ customers that their products are better than those of other companies.
A. confine
B. convince
C. depress
D. reconcile
【单选题】
He is not the right person for the project: he is not very technically minded and ___, he does not have the sense of responsibility.
A. instead
B. yet
C. furthermore
D. nevertheless
【单选题】
Death rates declined in many places, partly because of the ___ in hunger.
A. decrease
B. myth
C. obstacle
D. burden
【单选题】
In deciding whether or not a situation is safe, pilots must be taught to assume that the worst will happen, and then to ___ whether there is a risk or not.
A. absorb
B. apply
C. assess
D. occupy
【单选题】
The worker was not worried as he knew that if he gave up the job, there would be ___ opportunities for him to work somewhere else.
A. formative
B. marginal
C. vigorous
D. numerous
【单选题】
The research shows the region might ___ overheating (经济过热), but the policymakers so far appear to be relatively relaxed about the future of the economy.
A. catch a glimpse of
B. be at risk of
C. take a toll on
D. be free from
【单选题】
Measures have been taken to ensure that no student will have to ___ of college for economic reasons.
A. lay out
B. cancel out
C. drop out
D. stand out
【单选题】
Stress that is not treated can lead to significant medical illnesses, which ___ can lead to greater stress and even depression (抑郁症).
A. after all
B. in turn
C. on the contrary
D. at least
【单选题】
Narcissism (自恋) has its benefits in terms of self-belief and confidence, but it also tends to be ___ risky decision-making.
A. associated with
B. contrasted with
C. reserved for
D. relieved of
【单选题】
When Tom saw his doctor again, she suggested that maybe a more substantial lunch, like a sandwich, might ___ his desire to have snacks in the afternoon.
A. count on
B. cut back on
C. hold on to
D. contribute to
【单选题】
You shouldn’t ___ – let your children make their own decisions.
A. interact
B. abuse
C. startle
D. interfere
【单选题】
This is a huge and difficult project and if you take it up, you ___ many difficulties.
A. like to encounter
B. like encountering
C. are likely to encounter
D. are like to encounter
【单选题】
The ability to live for a long time without water is characteristic ___ the camel.
A. of
B. for
C. about
D. in
【单选题】
Rising sales is a good ___ that this product is well received in the market.
A. response
B. convention
C. indication
D. Influence
【单选题】
When tourists travel abroad, they are sometimes ___ by the local people because the tourists don’t know the real value of products.
A. turned in
B. given chase
C. wrapped up
D. ripped off
【单选题】
The professor’s lecture ___ the capacity of his young audience. They all looked puzzled at him.
A. pointed out
B. went beyond
C. contributed to
D. kept off
【单选题】
We must ___ on the amount of time we use on this project.
A. cut both ways
B. cut in line
C. cut off
D. cut down
【单选题】
We have to be very patient with this experiment. It will take time for some effects to ___ clearly.
A. build up
B. break up
C. clear up
D. show up
【单选题】
Perhaps there is a(n) ___ of truth in both theories, but few of us would ever have the opportunity to find out.
A. lump
B. substance
C. section
D. element
【单选题】
Be careful when you get along with her because she is known for her short ___.
A. temper
B. emotion
C. mood
D. feeling
【单选题】
It seems that wearing less formal clothing to school and work is becoming a(n) ___.
A. trend
B. campaign
C. goal
D. occurrence
【单选题】
You cannot correct children’s bad behavior simply with a (n) ___ or two on the hand or face.
A. slap
B. smash
C. slam
D. strike
【单选题】
Our investigations (调查) ___ something very surprising – many of the employees are underpaid and work overtime all the time.
A. reveal
B. bump
C. rip
D. frustrate
【单选题】
She was James’s faithful assistant, in whom he could have ___ confidence.
A. essential
B. automatic
C. ultimate
D. absolute
【单选题】
If you visit this website, you can ___ the categories to find information about all the universities in that area.
A. observe
B. browse
C. glance
D. look
【单选题】
Making New Year’s resolutions (计划) is a custom that still ___ in this country.
A. prevails
B. attaches
C. descends
D. launches
【单选题】
The military officers were more ___ about their own victory and therefore more willing to predict their enemy’s defeat.
A. appropriate
B. ignorant
C. negative
D. optimistic
【单选题】
___ is no doubt that overwork and much worry caused his illness.
A. It
B. There
C. Here
D. This
【单选题】
___ a day goes by that I don’t receive dozens of junk mails in my email box.
A. None
B. Usually
C. Nearly
D. Hardly
【单选题】
Please trust me. Try this new method ___.
A. you feel very relaxed
B. and you feel very relaxed
C. you will feel very relaxed
D. and you will feel very relaxed
【单选题】
John said Mom was coming back tomorrow, not next week. If this is the ___, we’ll all have to clean the house thoroughly.
A. point
B. norm
C. question
D. case
【单选题】
It is far too late for you to go out and play football, ___ the fact that it’s raining.
A. no doubt
B. despite
C. given
D. not to mention
【单选题】
However, under no circumstances should we ___ our achievements, nor should we regard our accomplishments as unimportant.
A. present
B. perceive
C. exemplify
D. exaggerate
【单选题】
Jane picked up a magazine from the bookshelf and started reading here and there ___.
A. accurately
B. randomly
C. emotionally
D. continually
【单选题】
In many Middle Eastern cultures a deadline is taken as a(n) ___, and such terms should not appear in a purchase contract with businessmen from these countries.
A. target
B. favor
C. honor
D. insult
推荐试题
【多选题】
与抗体的补体结合位点相结合的是___。
A. C1q
B. C1r
C. C1s
D. C1t
【多选题】
三条激活途径都有参与的补体固有成分是___
【多选题】
能够介导趋化作用的补体成分是___。
A. C2a
B. C3a
C. C4a
D. C5a
【多选题】
参与旁路途径的有___。
A. C1
B. C2
C. B因子
D. D因子
【多选题】
C1分子是由___构成的多聚体。
A. C1q
B. C1r
C. C1s
D. C1t
【多选题】
下列成分中，可以介导调理作用的是___。
A. IgG
B. C3b
C. C4b
D. iC3b
【多选题】
下列补体成分中，被成为“过敏毒素”的是___
A. C2a
B. C3a
C. C4a
D. C5a
【多选题】
CK发挥作用具有___特征。
A. 高效性
B. 特异性
C. 多效性
D. 随机性
【多选题】
I型IFN包括___。
A. IFN-r
B. IFN-B
C. IFN-a
D. IFN-k
【多选题】
细胞因子作用方式多样化，多采用哪种作用方式。___
A. 自分泌
B. 旁分泌
C. 内分泌
D. 以上都是
【多选题】
HLA-II类分子主要表达于___。
A. B细胞
B. 巨噬细胞
C. DC
D. 红细胞
【多选题】
HLA-I类分子表达于___。
A. 淋巴细胞
B. 红细胞
C. 血小板
D. 滋养层细胞
【多选题】
经典HLA-II类基因包括___基因座位。
【多选题】
经典HLA-I类基因包括___基因座位。
【多选题】
关于细胞因子，说法正确的是___
A. 仅由免疫细胞合成和分泌
B. 化学性质是糖蛋白
C. 属大分子蛋白
D. 具有复杂生物学功能
【多选题】
B2细胞表达___。
A. CD79
B. CD5
C. CD80
D. CD40
【多选题】
BCR共受体由___构成。
A. CD19
B. CD21
C. CD40
D. CD81
【多选题】
效应性T细胞包括___。
A. Th
B. Tc
C. Treg
D. Tm
【多选题】
Th17主要分泌___CK。
A. IL-7
B. IL-17
C. IL-21
D. IL-22
【多选题】
Th1型细胞主要分泌___CK。
A. IFN-r
B. IL-2
C. TGF-B
D. TNF
【多选题】
T细胞表达的膜分子有___。
A. 抗原识别受体
B. 抗原识别共受体
C. 细胞因子受体
D. 补体受体
【多选题】
活化的T细胞是___。
A. CD2+
B. CD3+
C. CD28+
D. CD40L+
【多选题】
发育成熟的T细胞，有什么特征___。
A. 表达TCR
B. 获得自身耐受性和MHC分子限制性
C. CD3+
D. CD4+CD8+
【多选题】
关于T细胞的分化发育，错误的是___。
A. T细胞发生在胸腺
B. T细胞先经历阴性选择再经历阳性选择
C. 阴性选择使T细胞获得MHC分子限制性
D. 阴性选择是T细胞获得自身耐受性
【多选题】
专职APC包括___。
A. B细胞
B. DC
C. 巨噬细胞
D. NK细胞
【多选题】
B细胞共受体分子复合物由___构成。
A. CD19
B. CD21
C. CD40
D. CD81
【多选题】
B细胞识别抗原，有___特征。
A. 无需APC
B. 无MHC限制性
C. 无特异性
D. 无需共受体分子
【多选题】
CTL攻击的靶细胞主要是___。
A. 细菌细胞
B. 病毒宿主细胞
C. 自身正常细胞
D. 肿瘤细胞
【多选题】
Th17主要负责清除___。
A. 胞内感染性病原体
B. 胞外感染性病原体
C. 真菌
D. 寄生虫类
【多选题】
CD4+T细胞分化的效应细胞包括___。
A. Th1
B. Th2
C. Th17
D. iTreg
【多选题】
内源性抗原主要是___。
A. 细菌抗原
B. 病毒抗原
C. 肿瘤抗原
D. 变应原
【多选题】
介导III型超敏反应的抗体有___。
A. IgG
B. IgE
C. IgM
D. IgA
【多选题】
补体在III型超敏反应中介导的效应有___。
A. CDC
B. 调理作用
C. 趋化作用
D. 过敏毒素样作用
【多选题】
青霉素可导致___超敏反应。
A. I型
B. II型
C. III型
D. IV型
【多选题】
下列疾病中，属于III型超敏反应的是___。
A. 血清病
B. 过敏性哮喘
C. 类风湿性关节炎
D. 结核病
【多选题】
II型超敏反应中细胞毒的机制包括___。
A. 中和作用
B. CDC
C. ADCC
D. 调理作用
【多选题】
I型超敏反应中，效应细胞释放的介质有___。
A. 组胺
B. 激肽原酶
C. 白三烯
D. 前列腺素D2
【多选题】
I型超敏反应中的速发相，受介质作用的靶细胞主要是___。
A. 毛细血管
B. 平滑肌
C. 血小板
D. 黏膜腺体
【多选题】
关于I型超敏反应，正确的说法是___。
A. 由IgE介导
B. 发生快，消退快
C. 以导致功能紊乱为主
D. 具有遗传性
【多选题】
荚膜的功能包括___。
A. 维持菌体固有形态
B. 抗吞噬
C. 抗损害
D. 抗干燥
