单项选择题

It was clear that the storm （） his arrival by two hours.

A. retarded
B. retrieved
C. refrained
D. retreated

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单项选择题

The last sentence of the passage suggests that （）。

A. the consumer should be allowed to do things his own way
B. the consumer should be treated like a king
C. the consumer should have the final say in the selling of any product
D. the consumer should be advised on what to buy

单项选择题

By such demarcation, strong, representative national societies can then be left to do what they do best--（）young scientists’ development at national meetings, and represent their disciplines at the national level.

A. foster
B. founder
C. found
D. foul