The old lady had expected to see all her relatives when she was ill in hospital, but none came to see her ______ many of her neighbors offered their help．

A．when

B．as

C．because

D．while

以震颤为主特征的疾病不正确的是（）

A.帕金森病

B.老年动脉硬化

C.慢性肝病

D.低钙血症

E.甲状腺功能亢进