学前教育有别于中小学教育，必须遵循（）。A、教育引导发展的原则B、寓教育于活动之中的

Many cultures have different ideas about why people catch colds. For example in the United States, some people think that you can catch a cold if your feet get cold. So, mothers tell small children to wear warm boots in the winter. In other places, including parts of the Middle East, some people believe that strong winds cause colds. So, on trains and buses, people usually don’t like to sit next to open windows. In parts of Europe, some people think that wearing wet clothes will give you a cold. They say that after you go swimming, you should quickly put on dry clothes. Today, scientists know that colds are caused by a virus（病毒）. But the old ideas are still very strong, and many people still follow them to avoid（避免）getting ill.

小题1:What is the main idea of this reading?

A．People still believe old ideas about why they catch colds.

B．Colds are the biggest health problem in the world.

C．Some people think that strong winds cause colds.

D．You should take good care of your health in winter.小题2:Which is NOT a cause（成因）of colds in the reading?

A．bad food

B．wet clothes

C．a virus

D．strong winds小题3:In "people still follow them to avoid getting ill", what does "them" mean?

A．scientists

B．old ideas

C．colds

D．dry clothes小题4:According to the reading, which of the following is NOT true?

A．There are many different ideas about how people catch colds.

B．Scientists don’t know how people catch colds.

C．Some people think that wearing wet clothes gives you a cold.

D．In the U.S., many small children wear boots in winter.小题5:Many people in different countries have ________ ideas about why people catch colds.

A．no

B．one

C．the same

D．different

十月秋风里，我国科学界两位大师--我国生物物理学奠基人贝时璋和中国航天之父著名科学家钱学森相继逝世，双星陨落，给我国科学界带来巨大损失。我们要为国家争气！这就是贝老留给中国科学界最后的遗言；我的事业在中国，我的成就在中国，我的归宿在中国激励着钱学森5年归国路，10年两弹成，在许多科学领域取得重大成就。从两位科学巨匠身上，我们看到以爱国主义为核心的中 * * 精神的力量。请回答：弘扬中 * * 精神的重大意义？

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下述哪项因素与原发性高血压左室后负荷增加有最密切的关系（）

A.外周血管阻力增加

B.主动脉顺应性降低

C.相对性主动脉瓣狭窄

D.血液黏度增加

E.动脉血容量增加

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