The car is very good, but it's too dear (贵的) I can't _____ it. [ ]

A. sell

B. like

C. afford

D. see

血液中的有形成分有哪些？（）

A.糖.脂肪.蛋白质

B.无机盐.白蛋白.球蛋白

C.红细胞.白细胞.血小板

D.红细胞.白细胞.血小板.蛋白质