问题
单项选择题
正常生产中，循环水（机泵冷却水用循环水）中断的现象有（）。
A.机泵轴承温度不变
B.减压真空度升高
C.塔顶压力降低
D.外排产品冷后温度升高
答案
参考答案：D
搜题请搜索小程序“爱下问搜题”
正常生产中，循环水（机泵冷却水用循环水）中断的现象有（）。
A.机泵轴承温度不变
B.减压真空度升高
C.塔顶压力降低
D.外排产品冷后温度升高
参考答案：D
| 找出下列问题的正确答案 | |
| ( )1. What's the time? ( )2. Why do you like music? ( )3. What time do you go to school? ( )4. Do you have any oranges? ( )5. How many brothers do you have? ( )6. What can you do? ( )7. Where is the baseball? ( )8. What's your favorite subject? | A. I can swim. B. Under the bed. C. Only one. D. At 8:30. E. Because it's relaxing. F. PE. G. It's seven o'clock. H. Yes, I do. |