单选题 In Hong Kong, doctors reported that, for unclear reasons, 12 recovered SARS patients had ______ weeks after they had been discharged -- spurring fears that people might be infectious even after they'd left isolation.
A. recovered B. relapsed C. reexamined D. re-diagnosed

【正确答案】 B

【答案解析】[解析] 形近识别。
四个选项均有前缀re-，但词义各不相同。A. recovered痊愈、复原：B．relapsed (旧病)复发；C. reexamined复试；D．re-diagnosed重新诊断。本句意为：12名痊愈的非典患者在解除隔离后几周____引发恐慌。所以B为答案。