浸润液体为什么能在毛细管里面上升呢?课本里面有解释 但是我看不懂

题目

浸润液体为什么能在毛细管里面上升呢?课本里面有解释 但是我看不懂
1.he ______against his parents'wishs then
A went B fought C was D played
但是我认为 都可以啊
2.although he has lived with us for years ,he ____us much impression .
A hadn't left B didn't have C doesn't leave D has't left
我认识是A 但是BC 为什么不对?
3.i want to leave now; I can't_____nothing useful here
A stand to do B stand doing C stand being done D stand to be doing
B A 为什么不对
4.To have the wonderful cloth ______new clothes ,they had the machine _______all day long
A made of ;running B make of ;run C made into ;working D made into ;work
5.The key _____the lock .you may take the wrong one .
A doesn't fit for B isn't fit for C doesn't fit D fits to
C 为什么 不是 A或B 为什么 没有for does 和 is 怎么区分啊?

答案

体为什么能在毛细管内上升或下降呢?我们已经知道,液体表面类似张紧的橡皮膜,如果液面是弯曲的,它就有变平的趋势.因此凹液面对下面的液体施以拉力,凸液面对下面的液体施以压力.浸润液体在毛细管中的液面是凹形的,它对...