库存血在4℃的环境内可保存()
A.24h
B.48h
C.72h
D.1周
E.2~3周
参考答案:E
解析:库存血在4℃的环境中可保存2~3周。
下列不含砂晶的药材为
A.洋金花
B.秦皮
C.怀牛膝
D.地骨皮
E.黄柏
根据句意用所给动词的适当形式填空。
小题1:I don’t like the boy because he keeps____________(talk) in class.
小题2:Chinese _______________ (learn) by more and more people from all over the world now.
小题3:Our teacher often asks us _____________ (discuss) questions in groups.
小题4:When I got home, my mother _____________(cook)in the kitchen.
小题5:---Where is the morning paper?
---Sorry. I ____________ (get) it for you at once.