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【单选题】

Passage One
Can babies be taught Is it best for their mental development if we teach them as early as possible Educational videos designed to give babies as young as one month an intellectual head start in life are to be launched in Britain. The videos cover music, poetry and use seven languages including Russia, Japanese and Hebrew. The videos have taken American by storm since they were launched three years ago, and now sell more than 1 million copies a year. However, their popularity has sparked controversy among educational psychologists, who are divided as to the possible benefits. Critics fear that the videos will be overused by parents desperate to see their children overtake their peers and warn that such young babies should not be encouraged to watch television.
Baby Einstein, the company the videos claims that it is a unique means of stimulating your child’s brain during the critical first years of life. It is not as if the parents buy it anti force their babies to watch it--the babies love it themselves. Leaflets accompanying the video explain that it will not teach babies foreign languages but offers "a greater chance of success" when they start them. Jenni Smith, an educational psychologist said the theories behind the video were valid. It is based on research and the rationale(基本原理) of this is sound.
However, other leading experts on early education said that babies are going to make far more progress if they are able to concentrate on the language they hear every day rather than trying to keep going with other languages on the off chance that they might one day learn Hebrew. The video probably say more about the parents’ attitudes and problems. It seems to be passing the responsibility for providing an interesting and stimulating environment for your baby from the parents to the television. They concerned that the videos were an example of "hot housing" and that babies would be aware of their parents’ anxiety for them to succeed.
The Sunday Times, a newspaper office, assembled its own judging group of six babies. "Their attention was definitely held. They enjoyed the music and they were fighting to get closest to the screen," said the supervisor of the trial. "Whether they have any educational effect is much harder to say, but I would definitely buy them just because they seem good fun."
The company makes the video claim that the video can ______.

A.
force parent to input a lot to their children
B.
facilitate the development of children’s brain
C.
teach children foreign languages
D.
teach children music and poetry
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参考解析:
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刷刷题刷刷变学霸
举一反三

【单选题】固定翼飞行主要靠( )原理。

A.
浮力原理
B.
伯努利原理
C.
反作用力原理
D.
牛顿原理

【单选题】当量长度法的基本原理是( )。

A.
将管段的沿程损失转变为局部损失来计算
B.
将管段的局部损失转变为沿程损失来计算
C.
将管段的压力损失转变为局部损失来计算
D.
将管段的压力损失转变为沿程损失来计算

【单选题】泡利不相容原理说明

A.
自旋量子数为半整数的粒子不能处于同一状态。
B.
自旋量子数为整数的粒子不能处于同一状态。
C.
自旋量子数为整数的粒子处于同一状态。
D.
自旋量子数为奇数的粒子处于同一状态。
E.
自旋量子数为半整数的粒子处于同一状态。

【单选题】后缘襟翼增升的共同原理是:

A.
增大了翼型的相对弯度
B.
增大了翼型的迎角
C.
在压力中心的后部产生阻力
D.
减小了翼型的阻力

【单选题】LAB法的基本原理是()

A.
以酶标记的抗体作为第一抗体,生物素标记的抗体作为第二抗体
B.
以生物素标记的抗体作为第一抗体,酶标记抗生物素作为第二抗体
C.
以生物素标记的抗体作为第一抗体,酶与抗生物素抗体形成复合物
D.
以生物素标记第二抗体,然后与酶结合形成复合物
E.
以酶标记第一抗体,然后与生物素标记的第二抗体形成复合物

【多选题】下列属于资本原始积累的是()

A.
英国的圈地运动
B.
西方殖民者掠夺美洲印第安人的土地和财富
C.
西方殖民者掠卖非洲黑人充当奴隶
D.
欧洲国家实行国债制度、税收制度和保护制度以积累财富

【单选题】碘量法的基本原理是什么?

A.
碘液 → 重铬酸钾 → 硫代硫酸钠 →维生素C
B.
重铬酸钾 → 硫代硫酸钠 → 碘液 →维生素C
C.
重铬酸钾 → 硫代硫酸钠 →维生素C
D.
重铬酸钾 → 碘液 → 硫代硫酸钠 → 维生素C