戒烟、少酒、平衡膳食、作息有序、情绪稳定、坚持运动，保持正常体重对癌症具有（）。 A

-Why not have a new machine designed?        

-_______ . I'll have someone do it soon.          [ ]

A. I don't think so      

B. I'm not sure          

C. It's up to you          

D. Sounds like a good idea

下列句子中，加点的成语使用不恰当的一项是（ ）

阅读理解。

     Some weight-loss camps, which are rare in China just a few years ago, have sprouted

(迅速出现) in Beijing, Qingdao, Shenzhen, and other cities. Today about 15 percent of

adults, or 200 million Chinese, are reportedly overweight. Of these, 90 million-about 7

percent-are obese.

     Experts say the obesity epidemic (流行病) is spreading to children, though more slowly

than in adults. The trend, they say, will have a huge impact on the health of China's citizens

and economy. "We're seeing a very large proportion of children and adolescents who are

quite heavy and aren't moving much," said Barry Popkin, a nutrition professor. Popkin

carries out an ongoing health-and-nutrition survey of 16,000 households in China. He says

more kids today are overeating and putting on weight "quite quickly." In just ten years China's

childhood obesity rate has doubled, with the greatest gains coming in urban areas. "In big cities

it's a big problem."  

     Some experts blame the extra fat on a range of factors, many of them tied to China's rapidly

changing economy and culture. The diets of Chinese adults and children are far higher in

calorie-laden meats, fish, eggs, dairy products, fats, and sugars than ever before. In addition,

kids-especially city children-are more sedentary today and spend more time indoors in front

of homework, television, computer games, and the Internet.

     Shuwen Ng, a health economist, says that kids in China now have pocket money, and they

spend a part of it on junk food. Ng adds that advertising and peer (同龄人) groups influence

kids' food choices. Certain foods, such as new candies or fast food, have attractive features.

China's childhood obesity rate are still less than that of the United States, where some 15 percent

of kids are said to be obese. But the long-term effects are equally serious.

1. According to the passage we know______________.                     .

A. weight-loss camps have been very popular in China a few years ago.

B. about 290 million Chinese are overweight in China in all

C. in China childhood obesity rate in rural areas is lower than that in major cities

D. America's childhood obesity rate is lower than China's

2. Which of the following is NOT the reason of China's childhood obesity?

A. Advertising on some new candies          

B. High quality diets

C. Playing computer games for long time      

D. Having pocket money

3. The underlined word "sedentary" in the third paragraph probably means_____________.

A. attentive  

B. unmoved    

C. absent  

D. inactive

4. According to the passage we can infer________________.

A. obesity explosion in China will affect the United States

B. there are great difference in kids' food choices now

C. junk food contributes to childhood obesity

D. city children eat more than rural children

5. What's the best title for the passage?

A. Chinese Childhood Obesity Explosion

B. Weight-loss Camps in China

C. Obesity Explosion's Impacts On Chinese Economy

D. Obesity Explosion In China And America

颈外动脉的终末支是（）。

A.舌动脉

B.面动脉

C.甲状腺上动脉

D.颈内动脉

E.颞浅动脉

市场经济具有哪些基本特征、基本作用与主要缺陷？