给水管道明装敷设的特点?
参考答案:明装即管道外露,其优点是安装维修方便,造价低。
外露的管道影响美观,表面易结露、积尘。
明装一般用于对卫生、美观没有特殊要求的建筑。
---Your uncle ate nothing this morning, _______?
---No, he didn’t. He got up so late that he hurried to work without breakfast.
A.did he
B.didn’t he
C.does he
D.doesn’t he
体重50kg的成人每小时正常基础需要量约为()
A.30ml
B.50ml
C.90ml
D.120ml
E.150ml