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【单选题】
设 在 内连续,且 ,则在点 处A.
的极限存在,且可导
B.
的极限存在,但不一定可导
C.
的极限不存在
D.
的极限不一定存在
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【单选题】The communists' preoccupation with economic growth and their whole attitude towards economic progress have been shaped by Marx's theory of long-run development of human society. This theory places eco...
A.
is more interested in the success of communism than in the welfare of his own family
B.
has the same fundamental interests as the non communist
C.
has the authoritative--if not arrogant--opinion about the advantages of communism over capitalism.
D.
is afraid to express his true beliefs for fear of punishment
【单选题】Which of the following is a synonym of “ preoccupation ” in “ become a national preoccupation in both countries ” ?
A.
concern
B.
hobby
C.
occupancy
D.
possession
【简答题】滴定分析按滴定方式可分为()、()、置换滴定和()。
【单选题】What does the underlined word preoccupation mean?
A.
The first right to occupy something.
B.
The first impression.
C.
The extreme focus of attention.
D.
The question.
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