将正方形ABCD沿对角线AC折成一个直二面角，则异面直线AB和CD所成的角是（）

总结成语：

（1）《木兰诗》是北朝民歌，刻画了花木兰这一生动的艺术形象，这首诗最后写道：“雄兔脚扑朔，雌兔眼迷离。双兔傍地走，安能辨我是雄雌” 你可以由这句话总结出一个成语么？

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（2）曹植不但聪明，而且很好学，他有许多著作，都可显示他有很高的文才，所以有人称赞他说：“天下才共一石，子独得八斗。”哪个成语可以形容曹植？

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（3）左思是晋朝的著名文学家，他曾写了一篇文章，抢着抄写的人极多，以至洛阳的纸都涨价了。

①这是哪个成语繁荣来历？

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②请问左思写的文章的名字是什么？

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患者，女，30岁，低热，尿急尿痛，腰部酸软5年余，血压150／100mmHg，尿蛋白（+），尿沉渣白细胞15个／高倍视野，影像学检查有局灶粗糙的肾皮质瘢痕，肾盂变形。

本病选敏感抗生素联合使用，疗程约为（）

A.1～2周

B.2～4周

C.3～5周

D.4～6周

E.以上都不对

用皮肤针法治疗小儿疳积，首选穴组是（）。

A.脾俞肾俞华佗夹脊穴（7～12椎）

B.脾俞胃俞华佗夹脊穴（7～12椎）

C.肝俞脾俞华佗夹脊穴（7～12椎）

D.脾俞心俞华佗夹脊穴（7～12椎）

E.脾俞肺俞华佗夹脊穴（7～12椎）

将能正常发芽的种子分成甲、乙两组，在适宜的温度和适量的水分条件下，甲组种在疏松肥沃的土壤中，乙组种在疏松贫瘠的土壤中．一段时问后，这两组种子的发芽情况是（　　）

A．甲组能发芽，乙组不能发芽

B．甲组不能发芽，乙组能发芽

C．甲、乙两组都能发芽

D．甲、乙两组都不能发芽

In our society, we must communicate with other people. A great deal of communicating is performed on a person-to-person (1) by the simple means of speech. If we travel in buses, stand in football match (2) , we are likely to have conversations (3) we give information or opinions, and sometimes have our views (4) by other members of society.

Face-to-face contact is (5) the only form of communication, and during the last two hundred years the (6) of mass communication has become one of the dominating factors of contemporary society. Two things, (7) others, have caused the enormous growth of the communication industry. Firstly, inventiveness has (8) advances in printing, photography and so on. Secondly, speed has revolutionized the (9) and reception of communications so that local news often (10) a back seat to national news.

No longer is the possession of information (11) to a privileged minority. Forty years ago people used to (12) to the cinema, but now far more people sit at home and turn on the TV to watch a program that (13) into millions of houses. Communication is no longer merely concerned (14) the transmission of information. The modern communications industry influences the way people live in society and broadens their horizons by allowing (15) to information, education and entertainment. The printing, broadcasting and advertising industries are all (16) with informing, educating and entertaining. (17) a great deal of the material communicated by the mass media is very valuable to the individual and to the society (18) which he is a part, the vast modern network of communications is (19) to abuse. However, the mass media are with us for better, for worse, and there is no turning (20) .

17（）

A. Although

B. Since

C. If

D. Even if