限制我国华北平原城市发展的主要区位因素是 A.地形 B.气候 C.能源 D.水资

题型:选择题

问题:

限制我国华北平原城市发展的主要区位因素是

A.地形

B.气候

C.能源

D.水资源

考点:城市化的表现及标志城市化动力城市化进程城市环境问题及治理措施
题型:选择题

______ does Li Lei go to school on weekdays? [ ]

A. What  

B. How  

C. What time

D. What about

题型:选择题

阅读理解

     The World Health Organization says obesity rates are rising in Pacific island countries.So, too, are

health problems linked to being overweight.

     The WHO says a major reason for the rising obesity rates is an increase in imported foods.It says many Pacific islanders have replaced their traditional diets of vegetables and fruits with imported processed

foods.

     Dr.Temu Waqanivalu is with the World Health Organization's South Pacific office in Suva, Fiji.He says many of the imported products lack nutritional value.

     Temu Waqanivalu said:"In some of the places, you'd be amazed to see how a bottle of Coke is cheaper than a bottle of water.I think that represents the kind of offenvironment we've created that doesn't really

encourage or make lifestyle choices an easy choice for the population."

     And a lack of physical activity among many Pacific islanders only adds to the obesity problem.

     The WHO says more than 50 percent of the population is overweight in at least ten Pacific island

countries.The rate is as high as 80 percent among women in the territory of American Samoa.Fiji had the

lowest obesity rate at 30 percent.

     In all, almost ten million people live in Pacific island countries.The WHO estimates that about 40

percent of them have health disorders related to diet and nutrition.

     Diabetes rates are among the highest in the world.Fortyseven percent of the people in American

Samoa have diabetes.So do 44 percent of the people in Tokelau, a territory of New Zealand.

     By comparison, the diabetes rate is 13 percent in the United States, a country that has its own

problems with rising obesity.

      Officials also note an increase in nutritional problems like anemia and not enough vitamin A in the diets of Pacific islanders.Dr.Waqanivalu says treating conditions related to obesity and diet puts pressure on

limited health resources and budgets.

1. The main reason why obesity rates are rising in many Pacific islanders is ________.

A. the change of society

B. the change of eating habits

C. the change of life style

D. lack of exercise

2. Imported products lack nutritional value but people love to buy them because ________.

A. they are cheap

B. they are popular

C. they are tasty

D. they are convenient to get

3. How many people living in Pacific island countries have health disorders?

A. 1 million.  

B. 4 million.

C. 6 million.  

D. 10 million.

4. The percentage of diabetes rates in American Samoa is ________.

A. optimistic  

B. steady

C. worrying  

D. low

5. If the passage appears in a newspaper, which column will it be?

A. Science.  

B. Nature.

C. Entertainment.  

D. Health.

题型:选择题

形位公差的基准有哪几种?

题型:选择题

某校学生在开展研究性学习时,进行人类遗传病方面的调查研究。图甲是该校学生根据调查结果绘制的某种遗传病的系谱图(显、隐性基因用A、a表示)。请分析回答:

学校另一调查小组经调查发现表现型正常的人群中,100个人中有一人含白化基因。现有一名双亲正常其弟弟是白化病的正常女性与一正常男性婚配,婚后他们生一个肤色正常的男孩的几率为()

题型:选择题

接受的撤回或修改的问题上,《联合国国际货物销售合同公约》采取了( )原则。

A.投邮生效
B.送达生效
C.尽快撤回或修改
D.合理时间内撤回或修改

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