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【单选题】
下列哪一说法不正确?( )
A.
访谈法是研究者和被研究者的直接接触和相互作用
B.
访谈法不需要做准备工作
C.
访谈法对于不适于书面语言的对象更容易接受和恰当
D.
访谈法具有较好的灵活性
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【判断题】催化重整的目的是提高汽油的辛烷值或制取芳烃。
A.
正确
B.
错误
【单选题】— I can't understand why my mother always keeps me hard at my work. — When you ____ children of your own, you will understand. [     ]
A.
will have
B.
are having
C.
have had
D.
have to have
【简答题】催化重整的目的是制取()和()并副产()。
【单选题】I can't understand why my boss is always _____fault with my work.
A.
finding
B.
seeking
C.
looking
D.
making
【简答题】vi. (~ to / with) obey sth. such as a rule or law 遵照;遵守;服从
【单选题】炼油中催化重整的目的之一是:()
A.
长链烃变为短链烃
B.
制取芳烃
C.
芳烃变为环烷
D.
长链烃闭环为环烷
【单选题】听力原文:W: I can't understand why my friend isn't here yet. We agreed to meet at 10:30. It's almost 11:00. Do you think we should try to call her or go look for her? M: She probably just got tied up in t...
A.
Check the time of high tide.
B.
Go stand under the clock.
C.
Wait a little longer.
D.
Look for the traffic light.
【简答题】I understand why my associate is being held,but what exactly am I being charged with?
【判断题】催化重整的目的只是生产芳烃。
A.
正确
B.
错误
【判断题】电机的基本结构由定子、转子和气隙构成?
A.
正确
B.
错误
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