液压系统在日常检查时,应保证各油泵、油马达的安装及连接无松动,运转无()。
参考答案:异响
用所给词的适当形式填空
1. I want some __________(tomato) for dinner.
2. There are some __________(orange) in the box.
3. The running star __________(eat) a lot.
4. He __________(watch) TV every day.
5. Thank you for __________(call) me.
6. She plays basketball very __________(good).
用折现率为13%计算的项目净现值为20万元,则内部收益率( )。
A.小于13%
B.大于13%
C.等于13%
D.无法判断