产程和产后的卫生防护中应做到,但除外
A.分娩前应注意清洗会阴
B.防止新生儿经咽部感染
C.新生儿用品专人专用
D.禁止母乳喂养
E.新生儿脐部应保持干燥
参考答案:D
已知2a-3b2=3,则代数式9b2-6a+4的值是______.
— If I her, I would come earlier.
A.will come to take care of,am.
B.come to look after,were.
C.will come to take care of ,were.
D.comes to come up with,am.