卷材防水应选择在晴朗天气下施工，此时防水层铺贴效果最佳。( )
参考答案：对
用括号内所给词的适当形式填空。
1. Two cats and a dog ________ (be) in the room.
2. —Thank you for ________ (help) us.
—That's OK.
3. I would like ________ (stay) at home on Sunday.
4. It takes her about 30 minutes ________ (get) there.
5. I am tired of ________ (stay) at home all the time.
以下行为能正确体现合作与竞争精神的是[ ]
A．担心对手超过我，独自使用最新资料
B．因拔河比赛失利，全班同学相互埋怨
C．为提高班级均分，考试时相互传纸条
D．组织帮扶小组，积极争创优秀班集体
