题目

很多蚂蚁一起把一颗米粒搬运到巢穴中，体现的是生物之间的（ ）关系． A . 合作 B . 竞争 C . 捕食 D . 寄生 答案：AThe Great Wall of China, a wonder of the word, 【1】(call) “The Ten Thousand Li Great Will” in China. It’s over 6,000 kilometers long, 6-7meters high【2】 4 to 5 meters wide. At most places the Great Wall has a wide walkway【3】snakes along the top. It is said that it’s the only man-made structure that can be seen from space. The Great Wall has a history of more than two thousand years. 【4】 was during the Qin Dynasty that the parts were joined up into one long wall. In ancient days it was difficult 【5】 (build) such a wall. Our forefathers carried, lifted and 【6】(lay) big bricks and stones【7】simple tools. Each brick and stone fits well, even 【8】they didn’t have our modern machines!Nowadays the Great Wall has become a place of interest. Every year people 【9】all over the world come to visit it. Many of them have got to know the famous Chinese saying: “He who does not reach the Great Wall is not【10】true man.”