单项选择题

In arithmetic, a number stands for the size of a set of things.

A．measures
B．estimates
C．cancels
D．represents
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单项选择题
Didn’t you know that the naughty girl used to skip classes
A．attend classes in time
B．miss classes
C．cheat in classes
D．be unhappy about classes
单项选择题
After Emily Dickinson retreated from the world at the age of twenty-six, she wrote more than one thousand poems.
A．received praise from
B．withdrew from
C．rebelled against
D．traveled around
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