皮疹好发于头皮的疾病是（）
A.白癣
B.黄癣
C.斑秃
D.脂溢性皮炎
E.银屑病
参考答案：A, B, C, D, E
If a grain of dust is unfortunately blown into your eyes, do you think it _____yours eyes to make it out? [ ]
A. of any use to rub
B. any use rubbing
C. of any use rubbing
D. useful to rubbing
身高1.6m的人站在镜子前2m处，他在镜中的像高______，像到平面镜的距离是______．
