单项选择题

The engine has more than three hundred_________, made of a lot of different materials.

A．compositions
B．components
C．compounds
D．combinations
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单项选择题
The few remaining pockets of resistance were finally _________into submission by the cruel methods of the conquering army.
A．clashed
B．smashed
C．crashed
D．crushed
单项选择题
The government's expansion program didn't work very well because _________.
A．the farmers were uncertain about the benefits of expanding production
B．the farmers were uncertain about the financial support the government guaranteed
C．the older generation of farmers were strongly against the program
D．the farmers were uncertain whether foreign markets could be found for their product
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