单项选择题

Passage Two Questions 21 to 23 are based on the passage you have just heard.
（）

A．By reflecting on Americans’ previous failures in predicting earthquakes.
B．By noting where the most severe earthquake in U. S. history occurred.
C．By describing the destructive power of earthquakes.
D． By explaining some essential geological principles.

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单项选择题

（）

A．The woman is making too big a fuss about her condition.
B．Fatigue is a typical symptom of lack of exercise.
C．The woman should spend more time outdoors.
D． People tend to work longer hours with artificial lighting.

单项选择题

（）

A．They hate exams.
B． The all plan to study in Cambridge.
C． They are all adults.
D．They are going to work in companies.

Passage Two Questions 21 to 23 are based on the passage you have just heard. （）

Passage Two Questions 21 to 23 are based on the passage you have just heard.
（）