阅读下列材料，然后问题。 材料1：“在早期的共和政治中，所有公民都认为，凡是他们作为其成员之一的集团，都是建筑于共同血统上的”。 梅因：
已知向量，．若向量满足，，则 （ ） A． B． C． D．
The boy sang and jumped ________ he knew his class won the game. A. as soon as B. as well as C. though D. s
故宫博物院和中央电视台联合推出大型电视纪录片《故宫》。该片从建筑艺术、功能使用、馆藏文物和从皇宫到博物院的历史转变等四个方面全面展示
We arranged that Kissinger would fly to Vietnam early in July and then stop in Pakistan on the way back. There he would develop a stomachache that would require him to stay in bed and not be seen by t
单侧光照射，植物会表现出向光性。已知该特性与生长素的横向运输有关，请利用所提供的实验材料，设计两组实验方案证明尖端存在着生长素的横向
阅读下图，回答下题。 根据《联合国海洋法公约》，下列序号所代表的海域及其海洋权益的说法正确的是 ①领海—沿海国对其享有与领陆一样的主权
What is your favourite colour? Do you like yellow, orange, red? . Do you prefer greys and blues? Then you are probably quiet, shy, and you would rather follow than lead. You tend to be pessimis
=_____________. 
=4 950.