A pregnant client who is diabetic is at risk for having a large-for-gestational-age infant because of which of the following

A．Excess sugar causing reduced placental functioning.

B．Insulin acting as a growth hormone on the fetus.

C．Maternal dietary intake of high calories.

D．Excess insulin reducing placental functioning.

药物性鼻炎的主要病因是（）

A.长期反复发作急性鼻炎

B.长期应用减充血剂

C.长期鼻内应用皮质类固醇激素

D.长期鼻内应用抗组胺药物

E.长期口服抗组胺药物