Precautions about what can happen through wrong handling are classified into the groups DANGER, WARNING and caution according to their urgency and degree of possible harm or damage.

因误操作可能引发的后果的预防措施，依据其紧急情况和可能造成的损伤程度分为危险、警告、小心三组。

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There has been five major investigations into what went wrong, including the public inquiry published earlier this month which criticised the whole NHS for the handling of the problems.

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