问题
判断题
汽轮机启动时，金属中的热应力大小是由其内外壁温差决定的，而上、下汽缸温差是监视汽缸产生热弯曲的控制指标。
答案
参考答案：对
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汽轮机启动时，金属中的热应力大小是由其内外壁温差决定的，而上、下汽缸温差是监视汽缸产生热弯曲的控制指标。
参考答案：对
| 从B栏中找出与A栏问题相对应的答语，把序号填在括号里。 |
| A ( ) 1. What do you take for rabbits? ( ) 2. How many butterflies do you catch? ( ) 3. Is your father reading the newspaper? ( ) 4. What are you doing? ( ) 5. What is your mother doing? | B A. Yes, he is. B. I catch three. C. I'm sweeping the floor. D. She is writing an e-mail. E. Some carrots. |