单项选择题

A．Seven times.
B．Five times.
C．At least seven times.
D．At least five times.
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单项选择题
In math, simplicity means that a detailed proof tends to be a better one.
A．Y
B．N
C．NG
单项选择题
A．She loves shopping very much.B．She has a lot of studying.C．She always gets high marks in her exams.D．She went shopping with the women yesterday.
A．She loves shopping very much.
B．She has a lot of studying.
C．She always gets high marks in her exams.
D．She went shopping with the women yesterday.
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