已知一个多边形的内角和是1080°,则这个多边形的边数是( ) A.8 B.7

题型:选择题

问题:

已知一个多边形的内角和是1080°,则这个多边形的边数是(  )

A.8

B.7

C.6

D.5

考点:多边形的内角和和外角和
题型:选择题

某城市新建一大型自来水厂,为了生产日常生活饮用水,原水采用地下水处理,在地下水处理时发现水色偏黄,负责人见状,为了防止饮用水含有过量的铁元素,于是设置了专门的去除铁的装置,以使达到卫生标准的生活饮用水。

铁是人体必须的元素之一,它与( )有着重要的关系。

A.人体吸收

B.骨骼生长

C.造血功能

D.牙齿健康

题型:选择题

生产力是人类社会存在和发展的基础。()

题型:选择题

超常儿童早期教育的主要方法有()。

A.加速学习

B.加深学习

C.过度学习

D.内容新颖化

E.内容精深化

题型:选择题

足阳明胃经与足太阴脾经相接于()。

A.迎香

B.隐白

C.太冲

D.睛明

E.少冲

题型:选择题

World Health Organization (WHO) officials recently urged Asia-Pacific governments to shake off complacency and intensify the fight against tuberculosis (TB), which kills 1,000 people a day in the region. Shigeru Omi, regional director of WHO for the Western Pacific, said deaths caused by tuberculosis continue to rise in the region as ’more and more people are infected with the dreadful disease every year.
"Every year, an additional two million tuberculosis cases are diagnosed in the region," Omi said at a news conference during the opening of a two-day meeting of Asian’ parliamentarians to discuss strategies to control the disease. (41) "When it comes to developed countries, the reason for the increase of TB is related to the ageing society," he said." (42) ""One common fact among developing countries and developed countries is complacency, "Omi added." (43) "
WHO said among the "high burden, high risk" countries in the region are Cambodis, China, Laos, Mongolia, Papua New Guinea, the Philippines and Vietnam. (44) It noted that more that 40 million people are infected with the disease and "10 percent of them -will develop TB in their lifetime. "In Cambodia, more than 7 million people, or 60 percent of the population, are infected with the disease, while in Vietnam more than 145, 000 people are infected each year. "In several developed and newly industrialized countries in the Western Pacific region, TB prevalence has not decreased markedly during the last decade although economic growth should make more resources available to deal with the problem, "WHO said. (45) .
Omi expressed confidence that with renewed vigilance among health officials in the region. TB prevalence could be reduced by half by 2010.
[A] If you become elderly, your immune system is becoming weaker and weaker.
[B] In Japan, the number of diagnosed cases rose to 48, 264 in 1999 from 42, 472 cases in 1996.
[C] Omi pointed out that the main factor for the rise of TB cases in developing countries is the rapid increase of people who migrate into the big cities and live in unsanitary conditions.
[D] There is no doubt that tuberculosis will be eliminated completely everywhere in the world in the near future.
[E] They thought we have already conquered tuberculosis, so they become a little bit complacent.
[F] WHO records showed that in China, tuberculosis is one of the most common causes of death.
[G] In Asia, the number of diagnosed cases rose to 148, 264 in 2001 from 42, 472 cases in 2005.

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