题干
---Would you like some coffee?
---Yes, and please get me some milk. I prefer coffee _______ milk.
---Yes, and please get me some milk. I prefer coffee _______ milk.
A：with
B：to
C：of
D：o
答案(点此获取答案解析）
A
，其他条件不变，这时两极板间电势差为U2，板间场强为E2，下列说法正确的是