QUEST: Business-class airlines may be finished, but the all-premium-class flights are still being detected.

奎斯特：全商务舱航空服务可能会结束，但是高等舱航空的运营状况仍在接受着检验。

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Consider the hospital, Ms. Wang previously may have been infected with the AIDS virus, but illness in the window period, can not be detected.

院方认为，可能此前王女士已经感染了艾滋病病毒，但病情在窗口期，无法检测出来。

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If a company lost 10% of its inventory to theft, it would react swiftly, but if it loses 10% of its customers, this may not be detected.

如果一个公司被盗走了10%的存货，它会迅速有所反应。而如果他的10%的客户流失，这不会太容易被发觉。

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