为防止误操作事故，变配电所的倒闸操作必须填写工作票。
参考答案：错
改错。
1. Now please give I a bottle of milk. ( ) 处错误，改正：
A B C D
2. That is a picture to my father at home. ( ) 处错误，改正：
3. My mother is in No. 5 Middle School at Beijing. ( ) 处错误，改正：
4. How many glass of water are there on the table? ( ) 处错误，改正：
5. Lets look at the book on my desk. ( ) 处错误，改正：
长江中上游防护林的营造是为了（ ）
A．减少长江泥沙
B．保持云贵高原水土
C．防止长江中上游水土流失
D．减少华北平原旱涝灾害
