有关 * * 灌洗的操作,描述正确的是
A.一次液体量1200ml
B.月经期、产褥期禁用
C.水温在40℃
D.冲洗液面高度90cm
E.可用1%乳酸
参考答案:B,C,E
临床Ⅲ级的法洛氏四联症患者的氧饱和度是()。
A.<70%
B.70%~75%
C.75%~85%
D.85%~95%
E.>90%
Which of the following is an example of a constraint
A) A predefined budget.B) The threat of a strike by a subcontractor.C) Relationship with the seller.D) The method used to measure project performance.