最有名最分布广泛的是白垩纪的白垩，如英吉利海峡两岸峭壁上暴露者。
The best known and most widespread chalks are of Cretaceous age, such as those exposed in cliffs on both sides of the English Channel.
近年来流行病学研究表明长期、过量摄入砷可导致暴露者出现周围神经症状。
It has been demonstrated in epidemiological studies in recent years that people exposed to chronic arsenic with high doses for a long time may lead to peripheral nervous symptoms.
目的观察中药扶正解毒颗粒(FJK)对镍暴露者肝损伤的临床疗效及改善酶活性的作用。
Objective To observe the clinical effect and the change of enzyme activities of Fuzheng Jiedu Keli (FJK) on patients with hepatic injury induced by nickel exposure.
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