单项选择题

油罐内发生火灾时，不能选用的灭火剂是( )。

A.直流水
B.泡沫
C.二氧化碳
D.干粉

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听力原文：Toyota Motor, having topped Daimler-Chrysler's American unit in sales for the first time last month, may be poised to dethrone Ford Motor as the world's second-biggest automaker within two years. It has gained market share since the 1970s, in part by improving the quality of the vehicles it makes. That is reflected in higher customer satisfaction ratings and fewer defects.Toyota Motor now ranks as the world's second largest automobile manufacturers owing to its improved quality and enlarged market sharE.A.正确B.错误

A.Toyota
B.
A.正确

单项选择题

煤矿井下采掘工作面发生机械漏油着火事故，应该采取的应急措施包括( )。

A.设法使巷道风流反向
B.设法加大巷道风速
C.迅速撤离
D.向调度室报告火情

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