Scanners at seaports are unable to detect the presence of deadly radiation in cargo containers. Here are just a few of the questions that each candidate should answer

海港的扫描仪还不能探测出集装箱里致命的放射物质。

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Now they insist that their procedures and intelligence have led to tightening up of controls, with better international cooperation, encouraged by the World Customs Union, and X-ray scanners to search cargo.

BBC: Lab bids to combat species smuggling