为预防麻疹可()
A.注射类毒素
B.接种死疫苗
C.接种减毒活疫苗
D.注射丙种球蛋白
E.注射抗毒素
参考答案:C, D
下列均为检查腹壁静脉曲张血流方向的正确方法,但除外哪一项:
A.检查者将手示指和中指并拢压在静脉上
B.一手指紧压静脉向外滑动,挤出该段静脉血液
C.挤出该段静脉血流至一定距离放松该手指
D.一手指挤压静脉至一定距离后两手指同时放松
E.一手指挤压静脉至一定距离后不动,另一手指放松
根据句意,用适当的介词填空。
1. Dad, could you take me _______ the concert?
2. You needn’t worry _______ me; I’m not a child.
3. My life has changed a lot _______ the last few years.
4. It’s really relaxing to chat ________ my grandfather.
5. I’m too busy these days. I hardly have any time _______ a rest.