吸入NO治疗时吸入气中NO与O2产生反应的NO2应限制在()
A.0.1ppm以内
B.0.5ppm以内
C.1ppm以内
D.5ppm以内
E.10ppm以内
参考答案:D
证券市场信息发布媒体包括( )。
A.书籍
B.电视
C.平面广告
D.杂志
Some old pots () clay were found lying () to the dead body.
A.made from; closely
B.made of; close
C.made by; closely
D.made up of; close