空气中波长为1.3μm的近红外光波在折射率为1.5的玻璃中波长等于()A、0.9μmB、1.7μmC、0.87μmD、1.95μm - 查题网

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高等继续教育 / 光纤通信

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空气中波长为1.3μm的近红外光波在折射率为1.5的玻璃中波长等于()
A、0.9μm
B、1.7μm
C、0.87μm
D、1.95μm

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光纤通信

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题型描述: 阅读理解M. Gregory Gale is one of the few people in England who are 100 years old, but this is not the only thing that makes him remarkable. On the day of his birthday, he played a game of tennis and went for a long walk. A few days later a radio reporter came to his house and asked him if he had any “secrets of long life”. This is what Mr. Gale said.“No, I don’t know any ‘secrets’ like that, but there are a few simple rules of good life. I’ve always kept them all my life. The first is this: ‘Don’t listen to those fools who tell you that you have to give up all the pleasures of life!’ That’s absolute nonsense!”“The second is to enjoy all the pleasures of life in moderation. For instance, I’ve always smoked a few good cigars every day. Not many, mind you! Only two or three! I’ve also always drunk a little good wine with my meals, perhaps two or three glasses.”“The third rule is to take a little exercise every day. I’ve always taken a little every day and on Saturdays I’ve always played a little tennis.”1、 M. Gregory Gale plays tennis every day. A. F B. T 2、 There are many people who are 100 years old in England. A. T B. F 3、 M. Gregory Gale has some “secrets of long life”. A. F B. T 4、 M. Gregory Gale played tennis and went for a walk on his 100th birthday. A. F B. T 5、 M. Gregory Gale smokes and drinks. A. F B. T统考英语A

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