戴隐型为什么会眼干?
参考答案:
泪液分泌量不足,造成眼干。镜片上沉淀物过多,也会造成眼干。环境干燥戴镜后加速泪液的蒸发。
_____of my parents used to travel all over the country on their own.
A.Both
B.All
C.Either
D.Each