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【单选题】
W hich of the following sentences indicates PREDICTION?
A.
Y ou must be back by 10 o’ clock.
B.
H e has to move the desk himself.
C.
Y ou should mind your own business.
D.
T he book should attract all lovers of poetry.
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参考答案:
举一反三
【单选题】•Read the advertisement below for ovens made by Bosch. •Are sentences 16-22.on the opposite page‘Right’or‘Wrong’? If there is not enough information to answer‘Right’or‘Wrong’, choose‘Doesn't Say’. •Fo...
A.
Right
B.
Wrong
C.
Doesn't say
【简答题】Read and complete the sentences. (看图,完成句子。)
【单选题】对烷烃的卤代反应描述不正确的是()。
A.
氯代反应和溴代反应都有选择性
B.
溴代反应的选择性比氯代反应高得多
C.
氯代反应的选择性比溴代反应高得多
D.
氯代反应的活性比溴代反应高
【单选题】随排出压力增大而轴承径向力不加大的是()
A.
往复泵
B.
单作用叶片泵
C.
单作用水环泵
D.
导轮式离心泵
【单选题】哪一种储备资产是当今国际储备的主体: B
A.
黄金储备
B.
外汇储备
C.
储备头寸
D.
SDRs
【单选题】Questions 16-22 ?Read the minutes of the meeting below. ?Are the sentences 16-22 'Right' or 'Wrong'? If there is not enough information to answer 'Right' or 'Wrong', choose 'Doesn't say' . ?For each s...
A.
Right
B.
Wrong
C.
Doesn't say
【判断题】在烷烃的卤代反应中,氯的反应活性比溴高,所以氯的选择性也高。
A.
正确
B.
错误
【单选题】•Read the following passage about a website. •Are the sentences 16-22 'Right' or 'Wrong'? If there isn't enough information to answer 'Right' or 'Wrong', choose 'Doesn't say'. •For each sentence, mark...
A.
Right
B.
Wrong
C.
Doesn't say
【判断题】烷烃中各级氢的活性顺序是 ,氯代反应比溴代反应的速度快,但溴代反应比氯代反应的选择性高。( )
A.
正确
B.
错误
【多选题】烷烃的卤代反应氯代和溴代比较
A.
氯的活性高,选择性也高
B.
氯的活性高,但选择性低
C.
溴的活性低,选择性也低
D.
溴的活性低,但选择性高
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