You are the project manager managing the setting up of an oil rig in the Pacific Ocean. Which of the following could be a valid constraint when you are doing human resource planning for your project

A．Weak matrix organization structur

B．Unlimited budget since the project is very critical to meet compliance need

C．Oil price increasing above $60 per barre

D．None of the abov

有关产褥期保健内容，下列正确的包括（）。

A.产后1小时可让产妇进食流食或清淡半流食

B.产后4小时内应让产妇排尿

C.每日应于同一时间手测宫底高度

D.推荐母乳喂养，按需哺乳

E.母婴同室