问题描述：
She is ___ newcomer to ____ chemistry but she has already made some important discoveries.
A.a; / B.a ; the
选哪个,怎么分析的?中文是怎么样的?
A.a; / B.a ; the
选哪个,怎么分析的?中文是怎么样的?
问题解答：
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