The woman wants to find a job _____ a babysitter.[ ]
A. like
B. for
C. as
D. on
答案:C
10吨50千克等于多少吨()
A.10.5
B.10.05
C.10.1
D.10.01
维生素D缺乏性佝偻病的预防应强调()
A.合理喂养
B.经常口服鱼肝油
C.经常口服钙片
D.经常晒太阳
E.母亲孕期与哺乳期的保健