She is a nice girl. _____________ is why I like her. [ ]
A. Which
B. That
C. What
D. It
答案:B
干眼症的主要临床表现
A.易疲劳,眼部不适
B.畏光、视物模糊
C.干涩异物感
D.不能耐受烟尘
E.以上全是
血细胞计数的白细胞可归于
A.分裂池B.储存池C.成熟池D.循环池E.边缘池