当归具有的功效是()
A.补血止血
B.活血止血
C.止血润肠
D.补血止泻
E.补血活血
参考答案:E
小儿疫苗接种时间,脊髓灰质三价混合疫苗开始接种的时间:()
A.新生儿
B.2个月
C.3个月
D.8个月
E.4岁
If there’s a fire aboard your vessel, you should first().
A.notify the competent authorities
B.sound the alarm
C.have passengers put on life preservers
D.cut off air supply to the fire