What kind of clothes do young people like wearing _____? [ ]

A. in the 1990

B. in 1990s  

C. in the 1990s

D. in 1990’s

骨显像图出现肺、胃和肾放射性摄取增加，常见于哪种疾病（）

A.骨髓硬化

B.组织细胞增多症

C.成骨肉瘤转移

D.甲状旁腺功能亢进

E.甲状腺功能亢进