简述复种在农业生产中的作用

动物的各种行为都与其         相适应的，对动物的     和         有重要作用。

患者男，33岁，因“发热、乏力、消瘦、口腔溃疡6个月”来诊。血清抗HIV（+）。

关于该病，叙述正确的是（）。

A.大多数疾病为原发性

B.80％以上的患者血清学C-ANCA阳性

C.常累及淋巴造血系统，导致造血功能异常

D.中枢神经系统常免于受累

E.人类普遍易感

Here’s an idyllic(田园风光的) scene: a small village where the sun always shines, crops always grow and your friends drop by to sweep your yard to the sound of guitar music. Animals do what they are told, there is no disease, and lending folks a helping hand makes you richer and wiser. Welcome to FarmVille — current population 69m and rising fast.

“It reminds me of my childhood,” says one player, Lia Curran, 37, a chemist from London. “Right now I’m growing wheat and poinsettia, I’ve got a small orchard, and I’m keeping some chickens and some cows. I like having the animals. It’s comfortable.”

Curran’s young animals, however, are nothing more than a collection of computer-controlled cartoons. FarmVille is an online computer game built into the social networking site Facebook and is described by its players as “addictive”. Launched last June by Zynga Game Network, FarmVille now has more players than Twiter’s entire user base — or more than the population of the UK. The players are largely women over the age of 35.

Jenny Glyn, 33, a London housewife, started playing in September. “I had a look at a friend’s farm and was hooked,” she says. “My first motivation was to overtake her, but I did that pretty quickly. Now there’s something satisfying about growing crops.”

FarmVille intellectually unites the worlds of social networking and gaming. Players are given a patch of ground with six fields, “cash”, a few seeds and a plough and have to build up wealth, skills and neighbors to create bigger, better, richer farms.

Inviting your online friends to play means you earn more and get free gifts; you rise rapidly through the first levels but, once hooked, have to work harder and harder with no final level or goal in sight.

“It’s very moreish,” says Curran. She hasn’t yet paid real-world money to advance in the game, but her friends do. One buys extra virtual currency at the exchange rate of $240 (£145) in FarmVille for $40 (£24) in the real world.

“I’d expanded on FarmVille as much as I could, but I just wanted a pond and some bushes and trees around it,” says the woman, who is too embarrassed to be named. “I didn’t tell my husband I’d paid real money because he’d think I’m mad. But then he did keep me waiting in the car outside our house while he harvested his raspberries.”

Brian Dudley, chief executive at Broadway Lodge, an addiction treatment centre, warns that this sort of obsessive(令人着魔的) play can lead to an addiction as severe as gambling.

59. What does Curran do in the passage?

A. She is a player.                                                      B. She is a farmer who grows wheat and poinsettia.

C. She is a chemist.                                                  D. She is a housewife who raises chickens and cows.

60. By FarmVille, the writer means ______.

A. an addictive farm on which live 69 million farmers

B. a London housewife’s farm

C. an online computer game built into the social networking site

D. a farm on which people grow real crops and play as well

61. In the last but one paragraph, the husband kept the woman waiting outside ______.

A. because he was angry at his wife’s being mad about the farm

B. because he himself was busy with his farm

C. in order to punish his wife for her having paid real money

D. so that his wife would wake up from her addiction to the farm

62. According to the passage, which of the following is NOT true?

A. The population of the UK is less than 69 million.

B. This sort of obsessive play can cause very severe addiction.

C. Once hooked, one has to make greater efforts to reach a higher level.

D. Up till now, nobody has yet paid real-world money to advance in the play.

精神病人在不能辨认或者不能控制自己行为的时候违反治安管理的，（）处罚。

A.免予

B.从轻

C.减轻

D.不予

2011年5月，江苏省很多瓜农发现许多西瓜尚未成熟就竞相炸裂开来，有媒体称该现象与瓜农使用“膨大剂”有关，许多购买者担心其会对身体造成不利影响，导致西瓜的整体销量受到影响。
以下哪项如果为真，最不能削弱上述推论

A．美国、日本等许多发达国家将膨大剂列入不需要进行毒性管理物质清单，其残留不需要制定安全限量标准
B．此次出现“裂瓜”的西瓜品种名称叫“日本全能冠军”，去年刚在当地引进推广，其特点就是皮薄、易裂
C．20世纪80年代末，我国从日本引进这种膨大剂，直到现在一直沿用，许多瓜农纷纷使用
D．今年春天以来，江苏干旱较重，在出现“裂瓜”的前后几天，恰逢当地下了大雨，在低洼地、水量多的地方，西瓜过度吸收水分出现“裂瓜”的情况比较多