题目内容

∫(sin2x)′dx=sin2x+C.

A. 对
B. 错

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1712A-3choosetheproperresponsetothequestion

A. You’refight
B. It’sgreat.
C. Hereismyear&
D. Howareyou?

1712A-4choosetheproperresponsetothequestion

A. It’sfaraway.
B. Takecare.
C. OnMonday.
D. Sure.

1712A-5choosetheproperresponsetothequestion

A. Yes,please
B. Mindyoursteps.
C. Ok.
D. Tomorrowmorning.

1712A-6choosetheproperresponsetothequestion

A. No,thanks.
B. It’sfine.
C. Sorry,wrongnumber.
D. Notatall.

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