天燃气的站内管道应横平竖直,湿燃气的进出口管应分别坡向(),仪器仪表接管应坡向干管,坡度及方向应符合设计要求。
A、室内
B、室外
C、干线
D、支线
参考答案:B
—I don’t know which skirt was ______, so I took them both.
—Yes, it’s really difficult to choose.
A.better
B.well
C.best
D.good
高血压患者自我保健包括哪些内容?