题目内容

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

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

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【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

More has been learned since 1945 about the chemical changes in the body than in all human

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