单项选择题

The tail exhaust pipe of the motor vehicle _________poisonous smoke.

A．disposed
B．emitted
C．launched
D．projected
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单项选择题
Ten years ago he had no money, so it was _________for him to buy a computer.
A．beyond question
B．without question
C．out of question
D．out of the question
单项选择题
All our preparations went _________because the exams were called off.
A．at nothing
B．beyond nothing
C．for nothing
D．into nothing
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