Don't laugh at her. She is _____  any of the others in your class.[ ]

A. as clever a student as

B. as a clever student as

C. so clever a student as

D. so a clever student as

对于获得性免疫缺陷综合征，下列哪项不恰当？（）

A.艾滋病由人免疫缺陷病毒感染所致

B.艾滋病是一种以细胞免疫功能严重损害为特征的性传播性疾病

C.除通过性交传播外，同性恋、输血、血液制品等均可传播

D.孕妇感染后可通过胎盘传给胎儿

E.艾滋病病程短，患病后很快死亡