问题
选择题
The book, ____ are true stories about great scientists of the 20th century, is well worth reading. [ ]
A. which
B. what
C. in which
D. of which
答案
答案：C
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The book, ____ are true stories about great scientists of the 20th century, is well worth reading. [ ]
A. which
B. what
C. in which
D. of which
答案：C