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
A．To go shopping.B．To do research for her story.C．To meet with her professor.D．To take a break from her work.
A．To go shopping.
B．To do research for her story.
C．To meet with her professor.
D．To take a break from her work.
单项选择题
A．11-week course for control duty.B．11-week course for patrol duty.C．9-week course for control duty.D．9-week course for patrol duty.
A．11-week course for control duty.
B．11-week course for patrol duty.
C．9-week course for control duty.
D．9-week course for patrol duty.
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