下列选项中，哪一个不属于《中华人民共和国道路交通安全法》中所指的“道路”（）
A. 广场
B. 住宅小区内不允许社会机动车通行的街道
C. 公共停车场
D. 高速公路
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In （）, hot diesel engine jacket water passes over the stack and heats the sea water passing through the tubes.
A. a flash generator
B. a flash evaporator
C. a vacuum boiling evaporator
D. a boiler
You are on a containership. Which statement about the stowage of hazardous materials in containers is TRUE?（）.
A. The containers provide automatic segregation of hazardous materials except for class A explosives
B. All packages within a container must be marked This End Up to indicate the correct stowage
C. A refrigerated container with a fuel tank containing a flammable liquid must be stowed on deck
D. Packages of liquids within a container should be stowed on top of packages of solids to prevent crushing
在断电之后,电动机停转,当电网再次来电,电动机能自行起动的运行方式称为失压保护。
A. 正确
B. 错误
可能涌出或积聚瓦斯或二氧化碳的硐室和巷道的瓦斯或二氧化碳应每班至少检查几次？
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