漏出液中的白细胞数一般不趄过
A.50×??10????6??/L??????
B.100X??10????6??/?????L
C.200X??10????6?/L
D.300X??10????6?/L
E.400X??10????6?/L
请帮忙给出正确答案和分析,谢谢!