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[单选题]
SY£¯T6276£1997《石油天然气工业健康、安全与环境管理体系》标准由()个关键要素构成。
A.5
B.6
C.7
D.8
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A.5
B.6
C.7
D.8
It can be inferred from the fifth paragraph that______.
A.the author is against the jury system
B.the jury is seldom adequately informed about the ease he is hearing
C.better educated people should be selected for the jury
D.enough legal knowledge helps jurors make fairer decisions
Between 1974 and 1997, the number of overseas visitors expanded ______ 27%.
A.by
B.for
C.to
D.in