When Mr. Smith retired, his son ______ the business from him. [ ]

A. took out

B. took down

C. took in

D. took over

以下是亚急性感染性心内膜炎的周围体征，除了

A．Roth点
B．皮下小结
C．Osler结节
D．Janeways点
E．指甲下出血