消化道中毒后洗胃,每次注入洗胃液量宜控制在()
A.500~600ml
B.500~1000ml
C.1500ml
D.800~1200ml
E.200~250ml
参考答案:E
— Oh! I came in a hurry and forgot to bring food.
— It doesn’t matter, You can have______
A.we
B.us
C.our
D.ours.
如何确定轴承故障?