低压蒸汽锅气压为（）。
A、0.15kg／cm2
B、0.25kg／cm2
C、0.35kg／cm2
D、0.45kg／cm2
参考答案：C
The work ________ by William Blake is a lovely volume of poems, presenting a happy world, though not without its evils and sufferings.
A．Songs of Innocence
B．Songs of Experience
C．Poetical Sketches
D．Lyrical Ballads
如何落实对监管警戒设施的定期检查制度？
