The old man ____ for three years. [ ]
A. has died
B. has been died
C. has been dead
答案:C
某患儿,2岁,确诊为半乳糖血症收住院。
半乳糖主要存在于()
A.奶类及其制品
B.肉类
C.鱼类
D.谷类
E.蔬菜和水果
对称是我国造型艺术传统的风格之一,这种审美习惯反映到服装上,以下列那种服装为代表()。
A.茄克衫
B.礼服
C.连衣裙
D.中山装