单项选择题

Keeping waste at______ is a good way to reduce the pollution in the environment.

A．disposal
B．disposition
C．distress
D．despair
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单项选择题
The______ of the town is not good, some of the pipes being broken.
A．drainage
B．charity
C．vegetation
D．nutrition
单项选择题
The mechanism that______ the turntable is broken. There has to be someone here to mend it this afternoon.
A．stirs
B．stimulates
C．revolves
D．steers
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