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[单选题]
This afternoon the professor will explain _______ the new theory during our team discussion.(1分)
A
us
B
to us
C
of us
D
ourselves
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参考答案
试题答案：
B
答案解释：
解题思路： 本题考查代词的用法。根据题意“今天下午，那位教授将在小组讨论时给我们解释新理论的应用”。explain to us意为“给我们解释”，介词to不可省略，故正确答案为B）选项。
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