CNG加气站内的固定储气设施额定工作压力应为（）。
A.1.6MPa
B.20MPa
C.25MPa
D.27.5MPa
参考答案：C
The girl has friends here, so she feels lonely.
A．little
B．a little
C．few
D．a few
说明CAROLINA型锅炉的型式和制造厂家。
