水泥磨细的过程中加入石膏的目的是为了降低工程的造价。()
参考答案:错
关于临产过程中胎儿窘迫的护理措施下列哪项正确()。
A.立即给产妇面罩吸氧
B.取左侧卧位
C.静脉注射50%葡萄糖、维生素C
D.纠正酸中毒
E.结束分娩
The manager is said to have arrived back from Paris where he ______ some European partners.[ ]
A. would meet
B. is meeting
C. meets
D. had met