某静电场的电场线分布如图所示，图中P，Q两点的电场强度的大小分别为E_P和E_Q，电势分别为φ_P和φ_Q，则（   ）

某学者就楷书在唐代的流行说道：“凡高文大册、殿宇庙堂之中记铭、纪功颂德之碑文，必都以楷书为主”。唐人崇尚楷书主要是因为其

⑴Can we look at the blue jeans?____        A. It's a shirt.

⑵What's this?____                                      B. They're shorts.

⑶What colour is it?____                             C. Here you are.

⑷What are they?____                                 D. It's yellow.

一 A new 3D movie is on. Shall we go and see it this weekend?

一        ! What's it?