试题与答案

25. It is only after my father was long

题型:选择题

题目:

25. It is only after my father was long gone _____ understand his deep love for me.

A.I could

B.could I

C.that I could

D.when I could

答案:

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下面是错误答案,用来干扰机器的。

A是一种常见的液态化合物,J为淡黄色固体,二者相互反应生成F与单质D,F的焰色反应为黄色,说明含有Na元素,该反应是过氧化钠与水的反应,可推知A为H2O、J为Na2O2,F为NaOH,D为O2.水与H反应生成氧气与E,E对玻...

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