The mother usually ______ the twins in the same clothes.[ ]

A. wears      

B. puts on      

C. dresses        

D. tries on

18岁男性患者，经肾活检诊断为IgA肾病，则其可出现下列哪种表现

A．血IgA降低

B．血IgA升高

C．血C₃降低

D．血C₃升高