单项选择题

Most of the astronauts were unwilling to go on the trip because

A．there was little chance of being selected
B．they weren't experienced enough
C．they thought they might get killed
D．it wasn't exciting enough
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单项选择题
Why were Sam and Joe chosen
A．The boss wanted them to get more experience.
B．The boss trusted them more than anyone else.
C．They were the last people who wanted to go.
D．They were the only men who offered to go.
单项选择题
A．moneyB．nameC．chequeD．himself
A．money
B．name
C．cheque
D．himself
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