单选题：For some time now, world leaders _________ out the necessity

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For some time now, world leaders _________ out the necessity for agreement on arms reduction. A．had been pointing
B．have been pointing
C．were pointing
D．pointed

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She did her work _________her manager had instructed.

She did her work _________her manager had instructed.A．as B．until C．when D．thoug

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根据下列材料，回答题。Themainintentionofthepassageistoprovide

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_________填上最佳答案。

_________填上最佳答案。A．conspicuously B．usually C．surprisingly D．sufficiently

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What is the author's attitude toward life on hold?

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县级以上人民政府有关部门根据统计任务的需要设立统计机构，或者在有关机构中设置统计人员，并指定统计负责人。（　）

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