问题
选择题
在生态系统中，能利用和分解人粪尿中有机物成分的是[ ]
A．生产者
B．消费者
C．分解者
D．各种病菌
答案
答案：C
搜题请搜索小程序“爱下问搜题”
在生态系统中，能利用和分解人粪尿中有机物成分的是[ ]
A．生产者
B．消费者
C．分解者
D．各种病菌
答案：C
| 阅读理解。 |
| American children like K Day very much. March 7th is the day. K is short for kites. On that day, many children go out to play with their friends or parents. They take their kites with them and fly kites in the open air. Some kites are very big, and some kites are small. They're in different colors. Some are red, and some are black. But every kite has a long string. |
| 1. The children ______ like K Day a lot. |
[ ] |
| A. in Canada B. in America C. in UK D. in Japan |
| 2. K Day is in ______. |
[ ] |
| A. spring B. summer C. autumn D. winter |
| 3. On K Day, American children can ______ kites in the open air. |
[ ] |
| A. buy B. make C. fly D. take |
| 4. The kites aren't in the ______ color. |
[ ] |
| A. red B. black C. same D. different |
| 5. Every kite has ______. |
[ ] |
| A. a short string B. a long string C. a red string D. a white string |