【单选题】He ___ coffee at all. He ___ tea.
【简答题】写出电容率为ε=ε 0 ε r 的电介质中极化体电荷密度ρ p 和极化面电荷密度ρ pS 与电场强度 的关系式,并简要说明极化电荷密度与分布电荷密度的异同。
【单选题】None of us knows where these new books can be bought.
【单选题】None of us knows which floor _______ on.
【简答题】单位体积的 电 偶极矩的矢量和称为极化强度,它 与极化电荷密度的关系式为 , 与极化电荷面的密度的关系式为 。
【单选题】He doesn ’ t like coffee at all. prefix="o" ns="urn:schemas-microsoft-com:office:office" ?xml:namespace>
【单选题】We need some____ advice on the problem because none of us knows anything about it. [ ]
【单选题】He_____________coffee at all. He____________tea.
C.
would like, not prefers
【简答题】He _______coffee at all. He_______tea.A. doesn't like; prefers B. likes; doesn't prefer C. would like; not prefers D. prefers; is not fond of