有现场人工技术检查作业或安排技检时间的列车，其列尾装置软管与_爱下问搜题

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问题填空题

有现场人工技术检查作业或安排技检时间的列车，其列尾装置软管与车辆制动软管的连接，由列检现场检车员负责。到达列车所在站须在列车制动机试验结束后，再（）。

答案

参考答案：进行排风作业

完形填空

My best friend is one of my classmates. We have the     hobby. We both enjoy music. I am good      English, but she isn’t. She has great interest in university (大学) life and wants to go to university when she     school. One day, I found her studying     so I wanted to help her with it.     she closed (关上) the book. I asked, "What are you doing?"
"Nothing," she answered shyly. I didn’t know      she closed her book. "I just want to     you," I said. "Please don’t laugh at me. My English is not good and I’m a little     about learning it in front of others."
"      laughs at you. That’s why you don’t make any progress (进步) in English. You should try. You should do your best to     English with your friends. You can also ask for help from them."

A．wild(狂野的)

C．calm(镇静的)

填空题

（2011•潍坊）分解因式：a³+a²﹣a﹣1=_______________