瘫痪肢体可在床面上水平移动,但不能抬离床面,这是()
A.0级肌力
B.1级肌力
C.2级肌力
D.3级肌力
E.4级肌力
参考答案:C
—What's this?
—It's _____ backpack.
—Where's _____ backpack?
—It's on the bed. [ ]
A. a; a
B. the; /
C. the; the
D. a; the
早产儿为预防佝偻病,每天服用维生素D的剂量为()
A.100~200IU
B.200~400IU
C.100~800IU
D.800~1000IU
E.2000~4000IU