问题
名词解释
无负荷试车
答案
参考答案：起重机械在无载荷时，对起升机构、各运行机构、传动系统、安全装置等进行性能实验。
搜题请搜索小程序“爱下问搜题”
无负荷试车
参考答案：起重机械在无载荷时，对起升机构、各运行机构、传动系统、安全装置等进行性能实验。
| 根据句意,选择方框中所给的动词,用其正确形式填空 | |
2. Last Friday everyone __________ fun at the fashion show and the students __________ lots of money for Project Hope. 3. __________ good food and __________ exercise are good for your health. 4. Yesterday I __________ these long red boots from my mother. 5. It's important __________ lots of water every day. 6. There __________ no calories in water, so you can drink it without __________ fat. 7. Afterwards, he __________ some blue strips on the trainers. |