单项选择题

Questions 19 to 22 are based on the conversation you have just heard.

A．Wind speed.
B．Rainfall.
C．Water temperature.
D．Direction of approach.
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单项选择题
______ receives about the same amount of sunlight all year.
A．The poles
B．The equator
C．The north temperate zone
D．The south temperate zone
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