单项选择题

The ______ of energy and money on the launching of the rocket is surprising.

A．exhaustion
B．expenditure
C．allowance
D．ownership
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单项选择题
Some American colleges are state-supported, others are privately _______, and still others are supported by religious organizations.
A．ensured
B．attributed
C．authorized
D．endowed
单项选择题
After practicing for several weeks, Peter decided to______
A．contrive
B．comprise
C．confirm
D．compete
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