问题
单项选择题
使用电热丝切割加工机时，推动板材要平稳，动作要连贯.避免因（）而使苯板熔化扩大，损坏造型
A、停顿
B、过快
C、用力
D、太热
答案
参考答案：A
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使用电热丝切割加工机时，推动板材要平稳，动作要连贯.避免因（）而使苯板熔化扩大，损坏造型
A、停顿
B、过快
C、用力
D、太热
参考答案：A
| 改正句中的一处错误。 | |
| 1. Where's Wuhan and Changsha? 2. Where're the flowers? It's on the table. 3. There is a picture book on dresser. 4. There's a window (窗户)on the wall. 5. We can see some birds on the tree. 6. I need my hat. Please take it here. 7. It's on the floor,between the bookcase or the desk. 8. We aren't know his name. 9. Some things are in the bed. 10. Here is the CDs. | _____ _____ _____ _____ _____ _____ _____ _____ _____ _____ |