题目内容

某一室内低压蒸汽供暖系统,最不利管段长度为180m.若控制每米总压力损失(比压降)为100Pa/m,则锅炉运行表压力应为()KPa。

A. 20
B. 30
C. 24
D. 35

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A.Terrible.B.Shocking.C.unforgettable.D.Cherished.

A. Terrible.
B. Shocking.
C. unforgettable.
D. Cherished.

【C4】

A. make
B. shape
C. set
D. form

【C8】

A. transferred
B. transformed
C. transmitted
D. transported

【C19】

A. convicted
B. convinced
C. conquered
D. conceived

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