用于环境监测方面属于强制管理的计量器具,属于B级计量器具的范围。
参考答案:错
解析:用于环境监测方面属于强制管理的计量器具,属于A级计量器具的范围。
For a moment nothing happened. Then all shouting together.
A.voices had come
B.came voices
C.voices would come
D.did voices come
跨区域维护线路的分界点杆塔,在系统中必须保持1个,不能是多个。