题目内容

【B10】

A. to give
B. giving
C. to be giving
D. have given

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Though adults breathe twelve times a minute, breathing is so automatic ______ the average

A. and
B. that
C. for which
D. in fact

【B9】

A. in which
B. on which
C. to which
D. for which

【B4】

A. some
B. others
C. another
D. ones

【B8】

A. more
B. further
C. yet
D. still

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