让平行板电容器带电后，静电计的指针偏转一定角度，若不改变两极板带的电量而减小两极板间的距离，同时在两极板间插入电介质，那么静电计指针的偏转角度（   ）

名著阅读。

先通读下面的短文，掌握其大意，然后从A、B、C、D四个选项中选择可以填入空白处的最佳答案．

    Online shopping is very easy for young people，but it's difficult for old people．Some Daigou shops，or buy-for-your shops,are1them much.

    Mr Li,a 64-years-you old man,is2his favourite CD in Daigou shop.He says,It's very convenient(方便的)to buy things online，but I can't 3the Internet．I'm lucky to find this buy-for-you shop，as I4to buy an opera CD．I am so happy to get5．From now on，I  6going to look for more things．”A manager of the shop says，“To meet(满足)the needs  7people，I start 8shop．”0ther people9find the large needs in Daigou shops．In many cities，such shops are opening their doors．

    Daigou shops are10for people to shop．

一天中，陆地最高气温出现在____左右，最低气温出现在____前后；最高气温与最低气温的差，叫做____。

下列省区不临海的是