摄碘率降低，T3、T4增高（）
A.甲状腺功能亢进
B.地方性甲状腺肿
C.亚急性甲状腺炎
D.甲状腺癌
E.甲状腺功能减退症
参考答案：C
—What are you doing there?
—I am _______ my tennis racket. I can't _______ it. [ ]
A. looking at; find
B. working with; find
C. looking for; find
D. finding; find
( )具有聚少成多、短借长贷、分摊风险、降低信息和交易成本等优点。
A．一级市场
B．二级市场
C．直接融资
D．间接融资
