在Excel工作表中,单元格E5中有公式“=$C$2+D4”,删除第B列后E5单元格中的公式为( ) 。
A.=$B$2+C4
B.=$C$2+C4
C.=$B$2+D4
D.=$C$2+D4
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在Excel工作表中,单元格引用的3种类型是、和混合引用。
在Excel中输入公式时必须以 作为开头,然后才是公式的表达式。（写符号，不写中文）
Mary is a _______ pupil.
A. nine year old
B. nine-years-old
C. nine-year-old
D. ninth-year-old
— Where can we find the interesting lesson you are talking about?— It is in ________.
A. Lesson Six, Second Book
B. Lesson Sixth, the Book Second
C. the Sixth Lesson, Two Book
D. Lesson Six, Book Two
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