有助于黄瘤诊断的辅助检查不包括（）。

A.冷冻切片猩红或苏丹红染色

B.血脂检查

C.脂蛋白电泳

D.免疫球蛋白测定

E.血液涂片查泡沫细胞

I can't give my son the leading position.________, he is too young；secondly, I want Mr Smith to

have the job. [ ]

A. After all  

B. For example

C. In the end  

D. To begin with