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举一反三
【单选题】As high school students flock to social networking sites, campus police are scanning their Facebook and MySpace pages for tips to help break up fights, monitor gangs and prevent crime. Some students o...
A.
students’ casual attitude to private information
B.
the technical support offered by the websites
C.
the approval given by the students themselves
D.
the special right granted by the government
【多选题】江河旅游资源的价值主要表现在
A.
江河是地球的血脉，它孕育了文明，江河两岸有大量的文明古迹和历史名城
B.
江河与两岸的山林风光和谐相应，构成一幅美丽画卷
C.
在江河上可以开展漂流、游泳等水上娱乐项目
【单选题】Have you ever heard of Angel Falls(瀑布) It’s the highest waterfall in the world, deep in the jungles(丛林) of Venezuela. Few people have ever seen Angel Falls. It’s very hard to get there. If you went by...
A.
Have you ever heard of Angel Falls(瀑布) It’s the highest waterfall in the world, deep in the jungles(丛林) of Venezuela. Few people have ever seen Angel Falls. It’s very hard to get there. If you went by land, you would have to travel for weeks through thick jungles. If you went by plane from Caracas, a city on the northern coast, it would take about four hours.
B.
What would it be like to take a trip by plane from Caracas to the falls For hundreds of miles you would fly southeast over green plains. Then the land would become higher, and you would see mountains with forests. Soon the land would level out to high plateaus (高原). Finally, you would fly toward a deep canyon(峡谷) with steep, rocky sides. Suddenly you would see a silver thread in the distance. Then as your plane flew closer, you would see the waterfall more clearly. You would see water falling over a half a mile straight down the cliff. It is a sight you would never forget.
C.
No one knew about this high waterfall until 1930. In that year James Angel, an American pilot, flew over the area. As he was flying over the mountains and canyons, he suddenly saw a waterfall. It was an impressive sight: the water seemed to be dropping straight out of the clouds.
D.
In 1941 an American expedition(抢险队) explored and measured the falls. From the top to the bottom, the water falls more than 3,200 feet. These falls are over 1,000 feet higher than any other falls in the world.
【多选题】下述各江河的叙述正确的是( )。
A.
珠江支流众多，河水含沙量少，流域内多急流峡谷
B.
西江为珠江的主源，珠江三角洲是著名的江南鱼米之乡
C.
漓江，是珠江支流桂江的一段
D.
富春江是珠江上游一段，常被作为我国锦绣河山的代表