步枪的主要特点是结构简单、加工容易、造价低。（ ） A.对 B.错

标签： 大国兵器 （中北大学）章节测试答案

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  Please Listen to the following TED talk and answer the questions followed.(6分29-7分09秒）The biggest reservoir, the ocean, was the least well measured,?until the scientists use the evidence A.more than 3,000 Argo floats?were distributed around the world’s ocean B.measuring the heat content?in Earth’s heat reservoirs C.distribute more than 30,000 Argo floats?around the world’s ocean D.reveal?that the upper half of the ocean?is gaining heat at a substantial rate