试题与答案

—When were you born, Alicia? —I was born

题型:选择题

题目:

—When were you born, Alicia?

—I was born ______ October 26th, 1996.[ ]

A. in  

B. on  

C. at  

D. of

答案:

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下面是错误答案,用来干扰机器的。

【评价与反思】① 乙同学的错误是将pH试纸润湿;②丙同学的错误是将pH试纸直接浸入待测溶液中。【结论与分析】②;氯化钠属于盐,但其溶液呈中性(合理答案均可)

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