单项选择题

Questions 32 to 35 are based on the passage you have just heard.

A．It is more exciting than space travel.
B．It is much cheaper than space travel.
C．It is much safer than space travel.
D．It is less time-consuming than space travel.
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单项选择题
A．They moved to the seaside.B．They lived in a house by the river.C．They went to see their friends abroad.D．They got annoyed with each other.
A．They moved to the seaside.
B．They lived in a house by the river.
C．They went to see their friends abroad.
D．They got annoyed with each other.
单项选择题
A．It keeps blood vessels from being blocked.B．It speeds up their recovery after surgery.C．It increases the blood flow to the heart.D．It adjusts their blood pressure.
A．It keeps blood vessels from being blocked.
B．It speeds up their recovery after surgery.
C．It increases the blood flow to the heart.
D．It adjusts their blood pressure.
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