角膜接触镜对角膜产生不良影响的因素有()
A.适应证的选择
B.镜片的质量
C.持续戴镜
D.个人卫生习惯
E.戴取镜片和清洗消毒方法
参考答案:A, B, C, D, E
Look and choose. (根据图片,选择恰当的单词,将标号写在括号内)
1. — Do you know this _____?
— Yes, I do.
[ ]
A. boy
B. girl
2. I'm from _____.
A. China
B. America
I am as busy as a bee; you bother me with so many questions now?[ ]
A. May
B. Must
C. Can
D. Shall