题目

 核糖与核酸都不含有的元素是 ( ) A.N             B.O             C.P             D.S 答案：D根据短文内容和首字母提示，在下文空格处填入适当的词使短文完整Do you know that animals have love for each other and their children just like us humans ? Let me tell you some moving stories of great animal parents.Several years ago a heavy r__小题1:___ hit a town and made the river go up. When the rain stopped, people found that a dog swam to an island in the river t 小题2:  a day for two weeks. Why did she do so? Her four children were there. The mother swam there every day to f 小题3:  her babies. This t 小题4:  story on the newspaper moved many people.Another story is about chimpanzees (猩猩). A scientist named Jane Goodall spent four years l _小题5:  with chimpanzees in Africa. She found that chimpanzees also cared for those that were hurt or got lost. “It is not o__小题6:__ humans who have duties, animals also do,” she said. Two birds in Chengdu also showed their parents’ l 小题7: . Their baby was h 小题8:  and fell on the street in the center of the city. Cars were d 小题9:  past but the brave parents rushed down to the road and took the little bird a 小题10:  with their claws (爪子).