单项选择题

Questions 11 to 18 are based on the conversation you have just heard.

A．Both editions are the same price now.
B．The paperback is on sale.
C．The hardcover book is better quality; therefore, it costs more.
D．The books are different, but the covers are the same.
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单项选择题
A．She is a professional writer.B．She is an accountant.C．She is an economist.D．She is a businesswoman.
A．She is a professional writer.
B．She is an accountant.
C．She is an economist.
D．She is a businesswoman.
单项选择题
Events enter the long-term memory if ______.
A．we think about them repeatedly
B．we are determined to remember them
C．they are experimented many times
D．they happen unexpectedly
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