—China's 24th science research team _______ at Changcheng Station on January 5, 2008.— Wonderful! Our scientists _______ a lot in this field already. [ ]A. h-初中英语-n多题

◎ 题干

— China's 24th science research team _______ at Changcheng Station on January 5, 2008.
— Wonderful! Our scientists _______ a lot in this field already.

A. have arrived; improved
B. arrived; has improved
C. arrived; have improved

◎ 答案

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◎ 解析

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◎ 知识点

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