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
查看答案
【B2】
A. bit
B. such
C. very
D. so
If a book has seven or more new words on each page, a reader who wants to practice reading
A. will probably drop it
B. will probably read it very fast
C. may study it very carefully
D. may read it with a dictionary
【B7】
A. whom
B. that
C. as
D. who
【B5】
A. at
B. for
C. on
D. off
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