问题
单项选择题
下列构成以危险方法危害公共安全罪的行为有（）。
A.刘某给电视台打电话谎称向火车站投放传染病病原体，导致有关部门紧急疏散旅客，严重扰乱了社会秩序
B.王某故意破坏正在使用的矿井下的通风设备
C.李某违反国家规定，向土地大量排放危险废物，造成重大环境污染事故，导致多人死亡
D.郑某生产、销售有毒、有害的食品
答案
参考答案：B
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下列构成以危险方法危害公共安全罪的行为有（）。
A.刘某给电视台打电话谎称向火车站投放传染病病原体，导致有关部门紧急疏散旅客，严重扰乱了社会秩序
B.王某故意破坏正在使用的矿井下的通风设备
C.李某违反国家规定，向土地大量排放危险废物，造成重大环境污染事故，导致多人死亡
D.郑某生产、销售有毒、有害的食品
参考答案：B
Do you know why different animals or pests(害虫) have their special colors? Colors in them seem to be mainly used to 1 themselves. Some birds like eating locusts(蝗虫), but birds cannot 2 catch them. Why? It is because locusts change their 3 with the change of the colors of crops. When crops are green, locusts look 4 . But as the harvest time comes, locusts change into the same brown color 5 crops have. Some other pests whose colors are 6 plants are easily found and eaten by 7 . So they have to hide themselves for lives and appear only 8 . If you 9 animals’ life, you’ll find the main use of colors is to protect 10 . Bears, lions and other animals 11 quietly through forests. They cannot be easily seen by hunters 12 their colors are much like the trees. Colors are useful not only on the land, but also in the 13 . A kind of fish can 14 a kind of black liquid(液体) when they face danger. The liquid spreads over quickly, so they cannot be found by their enemies and can quickly swim away. That is 15 they can live safely though they are not strong at all. So colors are really useful to animals.
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