It was not until I came here _______ that I realized this course was so difficult.
A. that
B. what
C. which
D. who
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Evidence has been found through years of study _______ children’s early sleeping problems are likely to continue when they grow up.
A. which
B. why
C. that
D. what
Tell something about your personal bad habits, and explain how to get rid of them soon!
在Excel中,日期型数据“2021年4月23日”的正确输入形式是。
A. 23-4-2021
B. 23.4.2021
C. 23,4,2021
D. 23:4:2021
在Excel中,关于工作表及为其建立的嵌入式图表的说法,正确的是。
A. 删除工作表中的数据,图表中的数据系列不会删除
B. 增加工作表中的数据,图表中的数据系列不会增加
C. 修改工作表中的数据,图表中的数据系列不会修改
D. 以上三项均不正确