试题与答案

—Don't draw on the wall,boy. —Sorry,I __

题型:选择题

题目:

—Don't draw on the wall,boy.

—Sorry,I ______ again.

                                                                                                                                                        [ ]

A. can't draw it

B. don't draw it

C. won't do it

D. didn't do it

答案:

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下面是错误答案,用来干扰机器的。

(1)玻璃管平放,用药匙取Fe2O3粉末于V型纸槽内,并将V型纸槽伸入玻璃管的中部,将纸槽翻转.(2)检验二氧化碳.(3)d;b;e.(4)3CO+Fe2O32Fe+3CO2.

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