The success of an indirect attack on a fire depends on the().
A. size of the fire when initially observed
B. complete containment of the fire
C. cooling ability of the firefighting agent
D. class of the fire
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在西餐的进餐过程中,要想取用离你稍远的食物或调料时,你应该:()
A. 离座,走过去取过来
B. 应与就近的人说明,传递过来
C. 自己站立起来,伸手取用
期刊在正常刊期之外出版(),需要报所在地省级新闻出版广电局批准。
A. 精选本
B. 增刊
C. 精华本
D. 合订本
E. 珍藏本
The selection of a lubricating oil depends to a great extent on the operating conditions,().
A. the type of coolant
B. the design of the engine
C. the type of fuel to be burned
D. B and C