当原煤粒度均匀，质量较好时，应采取小风大水的操作制度。
参考答案：对
1. buy...from... 2. pay...for... 3. eat up 4. keep doing sth. 5. forgive a mistake 6. given names 7. do with 8. at the end of 9. have trouble with 10. Silence is golden
( )不是风险识别的特点。
A．个别性B．主观性C．客观性D．不确定性
