《红楼梦》的版本分为“脂本”与()两大系统。
参考答案:程本
Eat-up Campaign has became hot topic, calling for people to take
action against waste.
A.a; /
B.a; an
C.the; /
D.the; an
A.用交流电压表测该电源电压时,示数是6V
B.用交流电压表测该电源电压时,示数是6V
C.用此电源给电磁打点计时器供电时,打点的时间间隔为0.01s
D.把标有“6V 3W”的小灯泡接在该电源上时,小灯泡将被烧毁