[单选题]Which of the following is not correct?
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2023-10-01 08:02:59
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[单选题]Which of the following is not correct?

A.It is useless to complain.
B.It is useless complaining.
C.Complaining is useless.
D.It is useless of complaining.
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国家开放大学

形成性考核

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