A violent earthquake hit Japan on March 11, 2011, _____ tens of thousands of deaths.

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依次填入下列各句横线处的成语，最恰当的一组是（ ）①有些官员涉嫌违法犯罪，却与他人订立攻守同盟，企图对抗组织调查，这无异于 ，最终必定是搬起石头砸自己的脚。②中国对南沙群岛及其附近海域拥有无可争辩的主权，中方在自己的领土上从事一些正当的建设活动，这天经地义、 。③万达集团董事长王健林当兵出身，他像做产品一样进行公司的制度建设，赏罚分明，因此，整个万达 ，运转有序，工作效率极高。

He was about to do his homework when an unusual noise________ his attention.

It is a set rule that students _____remain seated until all the papers have been collected. [ ]