— He says he has an uncle living in Taiwan.

— Nonsense!________, his father doesn't have brothers at all. [ ]

A. More or less  

B. As a matter of fact

C. In addition  

D. At least

普氏立克次体可引起下列哪种疾病

A．肠伤寒

B．流行性斑疹伤寒

C．Q热

D．地方性斑疹伤寒

E．恙虫病