唐太宗说：“自古皆贵中华，贱夷狄，朕独爱之如一。”他在位期间最能体现这一思想的重大举措是（  ）
①把文成公主嫁给松赞干布，带去了书籍、谷物和蔬菜种子等
②在今新疆地区设立管辖西域的安西都护府
③册封南诏首领为云南王，把手工业技术传到南诏
④设渤海馆，专门接待渤海商人和使者

20世纪60年代，随着科学技术的发展，科学家发现组成地球的坚硬岩石表层，是由

____大板块组成，且板块与板块都处在不断的____之中。

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．