After treatment they reached 91 %, 89 %, 70 %, 113 % of RDA.
补锌后分别达RDA的91% 、 89% 、 70% 、 113%.
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An excellent source provides at least ten percent of the U.S. RDA per serving.
能提供至少十个U. S. rda百分点,则称最好的来源.
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"You can get enough protein and meet the RDA before you even get to dinner," says Pipitone.
2019年12月六级真题（第二套）阅读 Section B