You _____be careful with the camera.It costs!

You _____be careful with the camera.It costs!A.must B.may C.can D.will

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What is the speaker talking about?

What is the speaker talking about?A.The life of tea tasters. B.Afternoon tea in

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13.用右图所示装置进行下列实验:将①中溶液滴入②中,预测的现象与实际相符的是

13.用右图所示装置进行下列实验:将①中溶液滴入②中,预测的现象与实际相符的是

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