配电变压器冷却系统部件状态量由()等组成。
A.温控运行情况
B.风机运行情况
C.油温情况
D.水冷情况
参考答案:A, B
槟榔杀绦虫时,其用量是()
A.1~3g
B.5~10g
C.0.1~0.2g
D.15~25g
E.30~60g
31. My computer ______yesterday .I must get it repaired this afternoon.
A.broke up
B.broke out
C.broke down
D.broke over