问题
多选题
| 多选 |
| 下列关于内能的说法正确的是（ ） |
| A．温度高的物体，其内能也一定大 B．物体吸收热量，其内能不一定增加 C．一定质量的0℃的冰熔解成的0℃的水，其内能一定增大 D．物体克服摩擦力做功，其内能一定增大 |
答案
BC
搜题请搜索小程序“爱下问搜题”
| 多选 |
| 下列关于内能的说法正确的是（ ） |
| A．温度高的物体，其内能也一定大 B．物体吸收热量，其内能不一定增加 C．一定质量的0℃的冰熔解成的0℃的水，其内能一定增大 D．物体克服摩擦力做功，其内能一定增大 |
BC
| 从下面方框中选择适当的单词或短语，并用其正确形式填空。 | |
2.The Smiths have an nine-year-old girl who _____ dance. She has won two national prizes up to now. 3. Its purpose was to help the whole society _____ helpinventors. 4. The family went to Britain and _____ there. 5. The task is so easy to do that I can finish it _____ tenminutes. 6. He worked hard so that he _____ pass the exam. 7. The house was _____ by high walls and trees. 8. It is good for you to _____ your friends sometimes. |