黄液上冲相当于西医学之：（）
A.玻璃体混浊
B.玻璃体液化
C.房水混浊
D.前房积脓
E.前房积血
参考答案：D
正常尿沉渣白细胞每高倍视野应小于（）
A.1个
B.2个
C.5个
D.7个
E.10个
—Can you tell me _____ it takes us to get there?
—Of course I do. [ ]
A. how many
B. how much
C. how long
