◎ 题干
Doctors _____ in every part of the world now.
[     ]
A. are needing
B. are needed
C. were needing
D. were needed
◎ 答案
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◎ 解析
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◎ 知识点
    根据n多题专家分析,试题“Doctors _____ in every part of the world now.[ ]A. are needing B. are neededC. were needingD. were needed …”主要考查了你对  【被动语态】【一般现在时】  等知识点的理解和应用能力。关于这些知识点的“档案”,你可以点击相应的链接进行查看和学习。