单项选择题

A school district has 1，989 computers，which is approximately one computer for every 68．6 students．Of the following，which is the closest approximation，in thousands，of the number of students in the sch001 district（）

A. 30
B. 120
C. 140
D. 160
E. 200

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单项选择题

In the correctly worked division problem above，each of the symbols□and△represents a digit．（）

A. if the quantity in Column A is greater;
B. if the quantity in Column B is greater;
C. if the two quantities are equal;
D. if the relationship cannot be determined from the information given.

单项选择题

When integer n is divided by 9，the remainder is 2．（）

A. if the quantity in Column A is greater;
B. if the quantity in Column B is greater;
C. if the two quantities are equal;
D. if the relationship cannot be determined from the information given.