题干

下列叙述中正确的是                                                    (   )

A:狭义相对论认为,物体静止时的质量与运动时的质量相等

B:在光的衍射现象中,亮条纹位簧是光子到达几率大的位置

C:宏观物体的物质波波长非常小,容易观察到它的波动性

D:不确定关系表明,可以同时准确地确定粒子的位置和动量

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答案(点此获取答案解析)

B

同类题5

    Hi, everyone, I'm Jane. Two years ago, my husband bought me a bicycle. If you live in a town, it is often faster than a car and you don’t have to worry about parking. You can leave it anywhere. As it has a seat at the back and a basket in the front, I can take my small daughter to school, to the library, to the shops, and to anywhere.
    I use it most in summer when the weather is warm and dry. It can be very unpleasant in winter when it is cold and the snow is heavy. Of course, you must be careful on a bicycle. Accidents are not the only problem. One day I went shopping with my friends. But when I came back, I found that my bike's front wheel was missing. It was a long walk to the bicycle shop. Now I have three strong locks(锁).
    My husband uses my bicycle sometimes for short journeys. He says it is better than waiting for a bus. He still uses his car for longer journeys, but I think that all the sitting down is making him fat and lazy. I like riding on my bicycle because I can exercise a lot and get much fresh air, and this makes me feel much younger.
____ Jane thinks a bicycle is __________ than a car if you live in a town.
____ It's convenient to use a bicycle because you can ride it to anywhere and needn't worry about __________.
____ When it is __________ in summer, Jane rides her bicycle.
____ For short journey, Jane’s husband doesn’t want to wait for a bus. He would like to __________.
____ Jane can get a lot of __________ and fresh air, so she likes riding very much.