发生传染病后，为防止传染病的进一步扩散，而采取划区域的措施称为（） A.隔离 B.封

— How are the things in your village?

— Modern farming methods have been brought in and the villagers are ______ now than before.

A．well off

B．better off

C．badly off

D．worse off

根据我国“十二五”现代农业发展目标要求，到2015年农产品质量安全例行监测总体合格率要大于（）。

A.90% 

B.94% 

C.95% 

D.96%

阅读理解

     The new iPhone 3G should please everyone. Its look and feel are only slightly improved, but a faster

network loads Web pages more quickly, true GPS functionality allows it to easily find places nearby, and

the new $199 price (down from $400) makes it an affordable luxury.

      Before deciding whether to buy, however, make sure you can actually take advantage of the iPhone

3G's high-speed data network. 3G stands for third-generation, which in non-geek speak translates to

Web pages and mail messages that, ideally, load about three times faster than on the original iPhone.

Even better, 3G coverage enables you to make a phone call and surf the Web at the same time. That's

great, if you live or work in a place where the 3G network of AT&T(美国电话电报公司) (the sole

wireless carrier of the iPhone) is active. That's not so great in cities like New York where AT&T's

cellular coverage is awful. As one of my colleagues in New York City, who bought the original iPhone,

commented, "It's just a toy. You can't make phone calls on it, so I carry my Verizon phone with me all

the time."

      The real fun begins when you tap on the icon called "App Store" and start browsing the hundreds of

add-on applications that have been developed just for the iPhone. You'll find tons of games (I like Jirbo

Break, a free game inspired by the Atari classic Breakout) and mobile versions of popular websites like

Pandora, Facebook, MySpace and the New York Times. Most apps will cost you, but the vast majority

are $9.99 or less. The apps work on the old iPhones too, but you'll enjoy them a lot more on the iPhone

3G because many of the programs, including Yelp (local business reviews), Whrrl (mobile social

networking) and UrbanSpoon (restaurant reviews), use your exact location - provided by the iPhone

3G's GPS chip - to make recommendations. The apps also load much faster over the 3G network.

1. The new iPhone 3G has following features except that _______

A. It looks and feels better

B. It has a faster network

C. It is easy to locate a place

D. It is too expensive for people to buy

2. Why do one of my colleagues carry Verizon phone with him all the time? ______.

A. Because iPhone 3G is just a toy.                                

B. ecause he prefers Verizon phone better.

C. Because AT&T's cellular coverage is terrible there

D. Because Verizon phone enables him make a phone call and surf the Web at the same time

3. Which of the following statements is NOT true according to the passage. ____.

A. App Store will offer you great fun.                                    

B. many apps have been developed for the iPhone.

C. Most apps are very expensive.

D. Pandora, Facebook, MySpace and the New York Times are popular websites.

4. From the passage we know that the attitude of the author toward iPhone 3G is _____.

A. doubtful

B. appreciative

C. optimistic

D. pessimistic

气液联动阀门手动泵扳不动的原因？

关于支气管哮喘，下列哪项说法是不正确的

A．多种炎症细胞参与的气道慢性炎症

B．临床表现为反复发作的喘息、呼吸困难

C．常出现局部可逆性气流受限

D．可自行缓解

E．可产生气道不可逆性缩窄