A:葡萄酒
B:香肠
C:面包
D:腐乳
一个平行板电容器,使它每板电荷量从Q1=3.0×10-5 C增加到Q2=3.6×10-5 C时,两板间的电势差从U1=10 V增加到U2=12 V。求:
①这个电容器的电容多大?
②如要使两极板电势差从U1=10 V降为U2′=6 V,则:每板需减少多少电荷量?
③若只把电容器极板间的距离减半,它的电容变为多大?
《史记•商君列传》记载:“商君相秦十年,宗室贵戚多怨望。”这主要是因为商鞅变法( )
完形填空
Hello! My 1 is Jim Smith. My first name is 2, and Smith is my 3 name.4am 5 English boy. What's that over there? Oh, it's my 6. It's an 7 dictionary. I like8 very much. 9 is it? It's red. Can you 10 dictionary? Yes, D-I-C-T-I-O-N-A-R-Y.