Japan says its prime minister promised to provide the world with "maximum transparency" about ____ accident at the Fukushima nuclear power plant during _____ telephone call. 

A．the; a

B．the; the

C．an; the

D．an; a

一职工从沿海某城市归来，腹泻1天，10余次，水样便，到市医院求治，疑为肠炎，后大便培养出E1-T0r型细菌，诊断后11小时医师上报疫情，国家要求上报此类传染病最迟不超过（）

A.6小时

B.12小时

C.18小时

D.24小时

E.48小时