题目内容

发生炉炉煤气一氧化碳含量是()%，所以极具危险性。
A 23至30
B 27至31
C 50至65
D 60至64

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The ability of innovative thinking greatly accelarateds the speed of natural evolution,which brings about great achievements in human civilization,such as art,literature,medicine,technology,especially in science which symbolizes the forefront of the expansion of human intelligence. However, it is such scientific advancements that enable humans to earn capacity of self-destruction,and cause the development of tools for self-destruction.

罗茨加压机不能通过()调节加压机的煤气输送量。
A 变频器
B 加压站回流阀
C 加压机出口阀门

煤气冷却、净化系统的各种塔器与厂区主要道路的最近边缘的距离应不小于()m。
A 30
B 20
C 10
D 5

TRT是高炉煤气余压透平发电装置的简称。()