This is the best hour I can _________ I_________ in the past twelve years.
A:know;have had
B:remember;had
C:think of;have had
D:think out;had
如图是人体尿液形成过程示意图,请据图回答:
甲、乙两只普通照明灯泡的铭牌如图所示,下列说法中正确的是