The number of children who have lost parents to AIDS ___ to rise to over 26 million in 2011.

A．are expected

B．is expecting

C．are expecting

D．is expected

类风湿性血管炎发生在皮肤时可表现为（）

A.甲床下出血

B.面部蝶形红斑

C.指甲腹侧裂片样出血

D.皮肤溃破坏死

E.皮下结节