氧气切割的过程是预热——吹渣——燃烧过程。
参考答案:错
急性闭角型青光眼发病因素包括().
A.眼轴短
B.大角膜
C.前房浅
D.房角窄
E.晶状体厚
______we listen to the teacher, ______we understand. [ ]
A. More; more
B. The most; the most
C. The more; more
D. The more; the more