下列断路器中不允许频繁分、合闸操作的是()断路器。
A.真空
B.六氟化硫
C.少油
D.空气
参考答案:C
— I saw Gina at the party. But she didn't speak to me _____ night.
— Maybe she didn't see you. [ ]
A. all
B. every
C. either
D. another
在我国,心理咨询和治疗已经发展完善,对其人员的专业技能有一定的规定性。