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)