刃磨尖齿铣刀前刀面时转动磨头架的要求是转动的角度比铣刀螺旋角小()
A.1°~2°
B.2°~3°
C.3°~4°
D.4°~5°
参考答案:A
表示减毒配伍关系的是( )
A.相须、相畏
B.相恶、相杀
C.相畏、相杀
D.相恶、相反
E.相须、相使
用所给词的正确形式填空。
1. It takes ___________ (little) time to go there by underground than by bus.
2. Many ___________ (butterfly) have round marks on their wings that look like eyes.
3. Last night it rained ___________ (heavy) in the southern part of the city.
4. There's not much ___________ (different) in price between the two mobile phones.
5. Thank you for your ___________ (value) help and practical advice.