单项选择题

A comprehensive market system should be established to（）the flow of talent, funds and materials.

A. suffice
B. necessitate
C. facilitate
D. fabricate

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单项选择题
（37）（）

A. paying
B. paid
C. to be paid
D. pay
单项选择题
Only a（）person would believe such an unlikely story about flying saucers.

A. credible
B. credulous
C. nonsensical
D. creditable
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