2. 外语
  3. Doctors won’ t operate on the patient______absolutely necessary.

Doctors won’ t operate on the patient______absolutely necessary.

admin2015-10-09  17
问题 Doctors won’ t operate on the patient______absolutely necessary.
选项 A、when
B、if
C、unless
D、though
答案C
解析 这是一道语法题，考点是连词意思和的用法。unless：如果不，除非
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成人本科学位英语

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