问题
填空题
热交换主要有:()、()、辐射三种,立磨内主要以()方式为主。
答案
参考答案:传导;对流;对流
热交换主要有:()、()、辐射三种,立磨内主要以()方式为主。
参考答案:传导;对流;对流
选择合适的介词填空。 | |
2. Let's buy some toys _____________ the children. 3. Can you find the cards _____________ Santa? 4. Would you like a new hat _____________ Christmas? 5. I'm going to give him something special _____________ China for his Christmas tree. |