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问题
单项选择题 A1型题
水火之宅是指()。
A.脾
B.胃
C.肾
D.肝
E.肺
答案
参考答案:
C
选择题
In our school library there ______ a number of books on science and the number of them ______
growing larger and larger.
A. are; is
B. is; are
C. have; are
D. has; is
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填空题
()和()产生进化的原材料。
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