— Did Aunt Li buy a skirt last Sunday?

— Sure. She chose_________ one of the two green skirts.

A．less expensive

B．the least expensive

C．the less expensive

D．the most expensive

患者，女，26岁，已婚。胃脘痞满，不思饮食，频频泛恶，干呕，大便秘结，舌红少津，脉细弱。其病机是：（ ）

A．脾阴不足

B．胃阴不足

C．胃燥津亏

D．胃热炽盛

E．肝胃不和