焊机操作工焊接时要确认每一卷的参数,焊接完毕挖边后要逐一检查(),不合格必须切掉重新焊接。
参考答案:焊缝质量
按要求进行句型转换。
1. I have seen your watch somewhere. (变为一般疑问句)
_______ you _______ _______ watch _______?
2. Do sports every morning. (变为否定句)
_______ _______ sports every morning.
3. The weather is always warm in these places. I like them. (合并为一句)
I like the places _______ the weather _______ always warm.
4. I'd like to visit the Great Wall. (对划线部分提问)
_______ _______ you _______ to visit?
5. I hope that I can visit Beijing some day. (改写同义句)
I hope _______ _______ Beijing some day.
6. What other things can you tell me? (改写同义句)
_______ _______ can you tell me?
用凝胶灯照射的时间要严格按照产品使用说明执行,照射的时间()都会影响指甲的使用寿命。
A.太长久
B.太短
C.过长或过短
D.随便多久