锅炉运行时,水位表如果只打开汽旋塞不打开水旋塞,可能出现的情况是()。
A.水位表内存满水
B.水位表内没有水
C.水位表水位和锅筒内的实际水位一致
参考答案:A
根据句意及首字母提示补全单词。
1. I have a piano l _____ on Wednesday afternoon.
2. Thank you for your i_____ to visit your school.
3. He spent the w_____ afternoon watching TV.
4. S_____ is the fist day of a week.
5. I have to b _____ my younger sister when my parents are away.
6. The studentsare studying for the English t_____ .
7. Something is wrong with my teeth, so I have to go to see the d _____ .
8. Where are you going the day after t _____ ?
9. Hi, Can you play tennis w _____ me?
10. Maybe you can come a _____ time.
夜审后打印的报表如果无记录,需要()。