凡在我国境内销售、使用的医疗器械应附有说明书、()、和()。其内容应该与说明书有关内容一致并使用中文。
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I try to relax because I knew I would use up my oxygen the sooner ______ .
A.the more excited I got
B.I got excited more
C.and more excited I got
D.and I got more excited
对流过热器和辐射过热器各有什么特点?