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单项选择题
前囟饱满见于
A.佝偻病
B.化脓性脑膜炎
C.小头畸形
D.先天性甲状腺功能减退症
E.小儿肥胖
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小儿出现时间概念的时间
A.出生时
B.3~7天
C.4~5个月
D.4~5岁
E.6岁
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住宅小区竣工综合验收必须符合的条件有( )。
未知题型
听力原文: The United States is a huge nation, the fourth largest in the worlD.Within its borders, there are vast regional differences in climate, geography, and historical experiencE.Each section of the United States is often thought to have its own customs and attitudes, and stereotypes have developed about the people of each region.
The United States has long been known as a melting pot because so many people from all over the world make up its population. The first immigrants in American history came from England and the Netherlands. Immigrants from many other countries then began arriving and are still coming. The greatest numbers came in the years 1880 to 1914. Between 1820 and 1973, the United States admitted over 46 million immigrants. Most came from Europe, but many also came from Latin America, Asia, Africa, Australia and CanadA.
Why was the United States called a 'melting pot'?
A.Most immigrants have settled in big cities.
B.Its population consists of people from various countries.
C.Most people tend to forget where their ancestors came from.
D.People gathered in racial groups.
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