In his speech, Premier Wen Jiabao points out that creativity is __it takes to keep a nation highly competitive .

A．how

B．what

C．which

D．that

病人对经治医生不满意时，可以重新选择医生属于

A.病人的权利

B.病人的义务

C.医生的权利

D.医生的义务

E.病人和医生共同的义务