单项选择题
给晶闸管施加正向阳极电压就会导通。 A、正确 B、错误
单项选择题给晶闸管施加正向阳极电压就会导通。 A、正确 B、错误
It is acceptable to record cash received in advance of ...
判断题 It is acceptable to record cash received in advance of providing products or services to revenue accounts.
坚持独立自主,就不能坚持对外开放。 A、正确 B、错误
单项选择题坚持独立自主,就不能坚持对外开放。 A、正确 B、错误