问题
判断题
煤电钻综合保护装置在每天使用前必须进行一次跳闸试验。（）
答案
参考答案：错
搜题请搜索小程序“爱下问搜题”
煤电钻综合保护装置在每天使用前必须进行一次跳闸试验。（）
参考答案：错
用方框中所给单词的适当形式填空。
2. —Where is Li Ming? —He's gone home to _____ his homework. He'll be back soon. 3. She washed the shirt and _____ it near a tree. 4. Last week our football team _____ by a team from No. 2 Middle School. 5. Today I _____ to finish reading this book. |
