题目内容

无效民事行为自法院或仲裁机构确认无效时无效。 ()

A. 正确
B. 错误

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听力原文：My mother is doing housework now.

【C10】

A. making
B. helping
C. watching

One afternoon Billy went out without his trousers.

A. Right.
B. Wrong.
C. Doesn't say.

【C6】

A. idea
B. success
C. party