题目内容
【题目】The professor will give us a speech ________ how to protect the environment.
A.forB.aboutC.withD.against
【答案】B
【解析】
略
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题目内容
【题目】The professor will give us a speech ________ how to protect the environment.
A.forB.aboutC.withD.against
【答案】B
【解析】
略