单项选择题


Questions 22 to 25 are based on the conversation you have just heard.

A．It can be even higher.
B．It’s the same as that of post office.
C．It’s very good.
D．It varies with the person’s experience.
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单项选择题
Which of the following sharks is the mast common shark
A．The whale shark.
B．The basking shark.
C．The spiny dogfish shark.
D．The great white shark.
填空题
O
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