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【简答题】
CO 2 是目前大气中含量最高的一种温室气体，科学家正在研究分离出空气中的CO 2 ，然后在催化剂作用下将CO 2 和H 2 反应合成汽油、甲醇等有机物。 请回答以下问题： (1)实验室中可选用制取氢气的装置 。 简述实验中将锌粒加入容器的方法是 。 (2)某同学设计下图装置分离CO 2 和CO。实验开始时关闭活塞b，打开活塞a，让混合气体从导管口进入，所得纯净气体从导管c逸出(假设完全反应)，此时逸出的气体是 。混合气体通入完毕后，再关闭活塞a，打开活塞b，使分液漏斗中的稀硫酸进入，此时逸出的气体是 。
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【单选题】听力原文： The American government, as well as every American individual, is touched by and concerned with inflation, and President Carter has called it our No. i problem. Indeed, inflation deserves this t...
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B.
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