多脏器功能障碍评分系统中指标不包括的是（）

A.氧合指数

B.血清肌酐

C.血清总胆红素

D.血小板计数

E.白细胞计数

_______ difficulty we meet with, we must finish it on time, because the opportunity is_______ valuable．[ ]

A. Whatever; such

B. However; such

C. However; so

D. Whatever, that