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It’s not entirely true that kids learn a second language easily, but it’s still the best time to learn. Babies are basically equipped to hear and distinguish every possible language and dialect, but once they reach 6 months old, they begin to focus on the particular sounds that exist in the l anguages that they’re exposed to. In this way, kids will naturally and automatically be bilingual(的) if they hear multiple languages on a daily basis when they are still babies.. One lady told me of her son who grew up in a very multi-cultural community working at a resort. He would naturally and easily switch from Dutch, to French, to Italian, German and English depending on who he was talking to. Of course that’s an extreme case, but it’s completely possible and easy. It’ s not true that they will get mixed up by learning multiple languages. They may mix them up purposely simply because certain words or expressions are easier, but they won’t develop any permanent language disabilities. Quite the contrary, bilingual children have been shown to be as much as a year more advanced in learning ability development for 2 and 3 years olds. Some kids who simply aren’t gifted at learning languages, just as some aren’t gifted at sports or music, will find it difficult to continue schooling in a foreign language. In that case, it may be better not to continue with the foreign language school. Still, it will have been an excellent opportunity for Grade One. Perhaps for Grade Two you could try a bilingual school. In any case, learning even a small amount of a foreign language, maintaining the ability to hear and pronounce it by listening to music and movies will keep a foundation for later learning. Knowing a second language can be a great benefit for gaining employment. 小题1:What’s the main idea of the first paragraph? A.It’s difficult for kids to learn a second language. B.Kids are able to learn multiple languages. C.Kids should be exposed to the native language. D.Kids enjoy all kinds of different dialects. 小题2:What did the lady tell us about her son? A.He could speak five kinds of languages. B.He was learning some different languages. C.He could talk with many people at the same time. D.He was working in a multi-community. 小题3:In which way can learning multiple languages benefit kids according to the text? A.Mixing up different languages. B.Distinguish different dialects. C.Developing learning ability. D.Developing language disabilities. 小题4:What should you do if your kids are not good at learning language? A.Ask them to turn to sports or music. B.Encourage them to remain in Grade One. C.Let them remain in the foreign language school. D.Send them to a bilingual school later.
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A.
在期望值相同的情况下,标准离差越大,风险程度也越大
B.
标准离差只适用于期望值相同的决策方案的风险程度比较
C.
标准离差率是标准离差对期望值的比例
D.
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环境
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人员
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机械
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材料
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机床零点
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编程原点
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越大
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不变
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A.
在预期收益相同的情况下,标准差越大,风险越大
B.
标准差不能用于比较预期收益率不同的方案的风险程度
C.
标准离差率是标准差对预期收益率的比例
D.
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越大
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越小
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D.
确定
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B.
标准离差只适用于期望值相同的决策方案的风险程度比较
C.
标准离差率是标准离差对期望值的比例
D.
标准离差是反应不同风险条件下的预期收益与期望收益之间的相差程度
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A.
机床参考点
B.
、编程原点
C.
、工件零点
D.
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