单项选择题

A. Their comprehensiveness. B. Their complexity.
C. Their abstruseness. D. Their openness.
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单项选择题
A. Emergency workers prefer to use sea water as a coolant.B. Emergency workers have now begun to use fresh water as a coolant.C. Fresh water could further corrode machinery.D. Fresh water could prevent radiation spreading.
A. Emergency workers prefer to use sea water as a coolant.
B. Emergency workers have now begun to use fresh water as a coolant.
C. Fresh water could further corrode machinery.
D. Fresh water could prevent radiation spreading.
单项选择题
A. The man will have no choices left. B. The man had better go there quickly. C. The man should go when he has spare time. D. The books are a bit scratched and are of poor quality.
A. The man will have no choices left.
B. The man had better go there quickly.
C. The man should go when he has spare time.
D. The books are a bit scratched and are of poor quality.
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