下述哪项不属于皮肌炎的特征性病变（）
A.向阳性皮疹
B.Gottron's征
C.皮肤异色病
D.颜面部蝶形红斑
E.技工手
参考答案：D
When _____ about one of the biggest concerns today, many people mention the sharp rise in prices. [ ]
A. asking
B. to ask
C. having asked
D. asked
维生素K最特殊需要群体是（）.
A.儿童
B.新生儿
C.妇女
D.老人
