题目内容

下列现象中属于光的全反射现象的是

A. 飞机在阳光下作特技飞行时,有时会看到飞机突然变得非常明亮
B. 玻璃中的气泡,有时看上去特别明亮
C. 人在河边看到岸上的树在水中的倒影
D. 人在河边看到河中的鱼

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1. Who deserves victory according to Winston Churchill?According to Winston Churchill, only those ____________________________________________________ deserve victory.

2. What must one do to realize his or her dream?One must work hard to _____________________________.

3. According to the writer, how were the Sistine Chapel and the first transcontinental railroad created?They were _____________________ who ________________________________ over a long period of time.

4. What is common to all great people and all great organizations?_____________________________________________________________________________

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