题目：
| 完形填空。 | |||
| It's Sunday. We are in the park now. __1__ is a big and beautiful park. __2__ many people in it. We all like this park. The park__3__ a lake. too.We can boat on the 1ake. But we__4__ swim in it. It is dangerous. Look at that family. They are__5__ the tree. The boy is on the left of his father. The family bring their__6__ to the park. It is a cat,a white cat. How lovely! The boy has a __7__ in his hand. He wants to fly it. But I think they__8__ look for the right place. It's not a good place here. There are too many trees. The mother has a beautiful handbag. It's __9__ . I like the colour. It's the color of the sky (天空). There is a __10__ on the tree. It says" Don't climb (爬) the tree!" But the cat is in the tree now. | |||
| ( ) 1. A. He ( ) 2. A. There are ( ) 3. A. have ( ) 4. A. can ( ) 5. A. on ( ) 6. A. son ( ) 7. A. ball ( ) 8. A. are ( ) 9. A. yellow ( ) 10. A. sign | B. It B. There is B. haves B. can't B. in B. pet B. plane B. must B. black B. newspaper | C. They C. There have C. is C. must C. under C. teacher C. shirt C. do C. white C. book | D. There D. There has D. has D. must't D. into D. cat D. kite D. can D. blue D. bag |
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答案：D题目分析：A、50mL水和50mL酒精混合后的体积小于100mL，是因为分子之间有间隔，一部分水分子和酒精分子会互相占据分子之间的间隔，故A解释正确；B、由于分子是在不断地运动的，丹桂花香的微粒通过运动分散...
