预制钢筋混凝土桩工程按设计图示桩长度尺寸计算,但报价中还需要考虑以下内容( )的费用。
A.桩尖虚体积
B.打试桩
C.送桩
D.钢筋工程
E.凿打桩头
参考答案:B,C,D
Construction of the gigantic office building in this city was for years intermittent .
A.stopping and starting at intervals
B.something that will happen soon
C.being watched with keen interest
D.anything that comes and goes
管路及阀门清洁、干燥后,用厂家配的充气装置,采用()方式,使液态气体充分汽化后进入气隔。