问题
选择题
下面关于血液功能的叙述中，不正确的是
A．运输氧气和二氧化碳
B．运送营养物质和废物
C．释放供应能量
D．防御保护作用
答案
答案：C
释放供应能量的是呼吸作用，氧气在组织细胞的线粒体中氧化分解产生的能量，一部分以热能的形式释放出来，另一部分以化学能的形式贮存在一种叫做ATP的物质中。
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下面关于血液功能的叙述中，不正确的是
A．运输氧气和二氧化碳
B．运送营养物质和废物
C．释放供应能量
D．防御保护作用
答案：C
释放供应能量的是呼吸作用，氧气在组织细胞的线粒体中氧化分解产生的能量，一部分以热能的形式释放出来，另一部分以化学能的形式贮存在一种叫做ATP的物质中。
It was a sunny day. A city man was driving along a country road with a new wagon(马车)and a beautiful pair of horses. He didn’t pay a lot of 1 to where he was going. Pretty soon he 2 that he was lost, but he 3 to drive, expecting to find his way or to 4 someone who could tell him how to get back to the 5 . It was a long 6 road. For many hours he kept on driving. When it was almost 7 , he saw in a 8 a tall farmer ploughing the land. He stopped his 9 team of horses near the fence and called out, “Hello, farmer.” “Hello, yourself,” the farmer replied, 10 ploughing. “Where does the horse 11 ? He asked without knowing his languages mistakes. “I haven’t seen it go anywhere. It 12 stays right where it is,” said the farmer, 13 stopping his work. “How far is it to the next town?” said the city man, speaking a little 14 . “Don’t know. I never 15 it,” replied the farmer. By this time the city man was getting 16 . “What do you know? You’re the biggest fool I 17 saw.” 18 stopping, the farmer turned and looked for a long time 19 at the city man. Then he said, “Maybe I don’t know much. 20 I am a fool. But at least I’m not lost!”
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