携带式电气设备的绝缘电阻不低于()
A、0.5MΩ
B、1MΩ
C、2MΩ
参考答案:C
The thief _____ before the police caught him. [ ]
A. took away
B. ran away
C. threw away
D. moved away
为施工准备、组织施工生产和管理所需的费用是指( )。
A.安装工程费
B.企业管理费
C.现场经费
D.其他直接费