单项选择题

Passage Three Questions 34 to 36 are based on the passage you have just heard.
（）

A．By judging to what extent they can eliminate the risks.
B．By estimating the possible loss of lives and property.
C．By estimating the frequency of volcanic eruptions.
D．By judging the possible risks against the likely benefits.

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单项选择题

A．He didn’t want to miss the game.B．He would like to warm up for the game.C．He didn’t want to be held up in traffic.D．He wanted to catch as many game birds as possible.

A．He didn’t want to miss the game.
B．He would like to warm up for the game.
C．He didn’t want to be held up in traffic.
D．He wanted to catch as many game birds as possible.

单项选择题

（）

A．It increased the students’ white blood cell.
B．It increased some students’ energy level.
C．It improved the students’ ability to play musical instruments.
D．It released a natural painkiller in some students’ bodies.

Passage Three Questions 34 to 36 are based on the passage you have just heard. （）

Passage Three Questions 34 to 36 are based on the passage you have just heard.
（）