—I'm sorry for I said.
—It doesn't matter.[ ]
A. how
B. which
C. what
D. where
答案:C
疟疾病正疟的寒热特征是()
A.热少寒多
B.热多寒少
C.先寒后热,寒热相当
D.热甚寒微,甚至壮热不寒
E.寒甚热微,甚至但寒不热
试比较含氮激素分泌细胞与类固醇激素分泌细胞的分布和结构特点。