单项选择题

确定计算药量，正确的是( )。

A.停滞药量是暂时搁置时，允许存放的最小药量
B.抗爆间室的危险品药量应计入危险性建筑物的计算药量
C.防护屏障内的危险品药量不计入该屏障内的危险性建筑物的计算药量
D.厂房内采取了分隔防护措施，相互间不会引起同时爆炸或燃烧的药量可分别计算，取其最大值
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听力原文：It takes only a trip on the busy but rutted highway that leads north from here to understand how a huge swath of the Amazon jungle could have been razed over the course of just a year. Where the jungle once offered shelter to jaguars, parrots and deer, the land is now increasingly being cleared for soybeans, Brazil's hottest cash crop.What has happened to the Amazon jungle?A.Highways have been constructed through the jungle to help ease the traffic in the cities.B.Jaguars, parrots and deer that once inhabited the jungle have left because the place was getting too hot for them.C.The land has been cleared for growing soybeans because it is the most popular Brazilian fooD.D.Fast economic development has brought devastating changes to the natural environment in Brazil.
A.What
B.Highways
C.
B.Jaguars,
D.
C.The
E.
D.Fast
单项选择题
粉状乳化炸药生产过程中的火灾爆炸危险因素主要来自( )。
A.物质的危险性
B.生产设备的高速运转
C.环境条件
D.水相材料和油相材料间的强剪切力
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