在下列的Excel表中，在C3单元格输入公式“=A2+$C$2”，则C3单元格的值为(55)。
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The average surface temperature of Earth keeps around 15℃.
A. Y
B. N
C. NG
在Excel中，设A1单元格的值为10，A2单元格中的值为20，在A3单元格中输入"A2-A1”，则A3单元格中的值为(53)。
A. 10
B. -10
C. A2-A1
D. ######
Why can the police help you to find out directions within a neighborhood？
A. They can fax you a map of the neighborhood.
B. They often visit each house in the neighborhoo
C. They know the name of each street in the neighborhood.
D. They have a map of all the buildings in the neighborhood.
土地出让期届满，政府有偿收回出让的土地使用权及地上建筑物。()
A. 正确
B. 错误
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