问题
判断题
焊接作业的危害因素可分为物理性和化学性两种。( )
答案
参考答案：对
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焊接作业的危害因素可分为物理性和化学性两种。( )
参考答案：对
| 用方框内单词的适当形式填空, 每词只能用一次。 | |
2.Tony likes music and he likes . 3.Be quiet!Can you someone is singing a song? 4.Betty always the piano on weekends. 5.Tom's aunt always T shirts. 6.Let's this magazine. 7.Daming usually to his classmates. 8.Amy is going to in the lake. 9.The family like TV at home together. 10.Li Lei always others as Lei Feng. |