单项选择题

More has been learned since 1945 about the chemical changes in the body than in all human history before （）time.

A. in
B. that
C. which
D. the

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单项选择题
I wouldn’t get so angry if you（）more work done.

A. get
B. got
C. will get
D. would get
单项选择题
I applied for the job that I saw advertised （） the paper.

A. on
B. of
C. in
D. at
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