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【简答题】
下表是A、B二种有机物的有关信息 根据表中信息回答下列问题: (1)A与含溴的四氯化碳溶液反应的生成物的名称叫做________;写出在一定条件下,A生成高分子化合物的化学反应方程式___________。 (2)A与氢气发生加成反应,其生成物的同系物的组成通式为________________。 (3)B具有的性质是________(填序号): ①无色无味液体、②有毒、③不溶于水、④密度比、⑤与酸性KMnO 4 溶液和溴水反应褪色、⑥任何条件下不与氢气反应; 写出浓硫酸和浓硝酸的混和物与B与反应的化学方程式:________________________。
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【判断题】The ability to reproduce the input signal. A large bandwidth corresponds to a small rise time (tr), or fast response. Roughly speaking, we can say that the bandwidth is proportional to the speed of re...
A.
正确
B.
错误
【单选题】How many nights will the guest stay in the hotel?
A.
two nights
B.
four nights
C.
three nights
D.
five nights
【单选题】Freddy has eaten three corn dogs at the county fair and knows that if he eats another, he will get sick on the roller coaster. Knowing this, and ignoring any impact that price might have on his decisi...
A.
total utility of the fourth corn dog is less than zero.
B.
marginal utility of the fourth corn dog is less than zero.
C.
total utility curve is still increasing at the fourth corn dog.
D.
marginal utility curve is still increasing at the fourth corn dog.
【单选题】We can say that the allocation of resources is efficient if
A.
producer surplus is maximized.
B.
consumer surplus is maximized.
C.
total surplus is maximized.
D.
sellers’ costs are minimized.
【单选题】How many characteristics of Disney corporate structure are mentioned?
A.
2
B.
3
C.
4
D.
6
【简答题】她的缺憾告诉你什么是完美 杨澜:从上世纪80年代初开始,你的故事被媒体宣传,被政府的最高领导人肯定,其实你一直生活在社会关注当中,被当成一个自强不息、身残志坚的榜样,这种情形是否会让你自觉不自觉地压抑一部分天性以满足人们的期待? 张海迪:不,我觉得人要有思想,活着才有意义。我从懂事起,我就一直这样想,我虽然已经病了49年,但心理上还是按照我自己的意愿在生活。我觉得我是站在被宣传的海迪之外看这个海迪...
【单选题】( )又称从料架上层至下层补货,指由地板堆叠保管区补货至地板堆叠动管区。
A.
循环式补货
B.
垂直式补货
C.
复合式补货
D.
自动仓库补货
【单选题】弹性体改性沥青防水卷材搭接宽度为( )
A.
50
B.
60
C.
80
D.
100
【单选题】How many guest will be there?中文
A.
将有多少顾客?
B.
将定多大的餐位?
C.
将有几道菜?
【单选题】The expression “Many in the corporate world” in paragraph 3 refers to__________.
A.
people who cooperate with MIT
B.
people who work in company
C.
people who study in MIT
D.
people who work in MIT
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