Researchers must obtain approval only from their hospitals or clinic's ethics board.

研究人员必须获得医院或诊所伦理委员会的批准。

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The Department for Education's guidance says schools can charge only for board and lodging if the trip is part of the syllabus, and that students receiving government aid are exempt from these costs.

教育部的领导说，如果旅行是教学大纲的一部分，学校只可以收取食宿费用，而且接受政府资助的学生不需要支付这些费用。

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According to the California walnut Board, only 4 percent of the walnuts sold in the United States are in the shell.

根据加州核桃委员会说，在美国出售的核桃只有4%是带壳的。

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Chancellor Angela Merkel is on board - though only because the alternative looked even more dangerous.

BBC: Greece's international rescue deal takes shape

The new Disney ships feature almost Michelin-level fine dining, elegant on-board spa services, and adult-only tours, says Brown.

CNN: Beyond Mickey Mouse: Disney tops cruise ship rankings

The last stage of the Wye withdrawals would leave a few Israeli settlements isolated in Arab-controlled territory, causing a lot of fuss and bother, presumably including a new chequer-board criss-crossed by settler-only roads.

ECONOMIST: Barak��s clumsy start