()是计量仪器和量具以及计量物质的总称。
A.计量仪器
B.计量量器
C.计量设备
D.计量器具
参考答案:D
. ---Would you mind my sitting on the seat beside you, sir?
---______.
A.Sure, with pleasure
B.Yes, help yourself
C.I’m sorry, but it’s taken
D.Well, never mind
何谓中暑?中暑分哪几类?