Scarlett Johnasson developed ______ interest in acting at three and has made herself perhaps ______ finest actress of her generation.

A．an; a

B．/; the

C．an; the

D．/; a

HLA-B27阳性相关的疾病是（）

A.类风湿性关节炎

B.系统性红斑狼疮

C.强直性脊柱炎

D.肾小球性肾炎咳血综合征

E.胰岛素依赖型糖尿病