Tea contains a variety of substances beneficial to human health, but only in a dark, sealed box can ...
2022-06-12 21:48:12 113次 上海市2019-2020学年高一上学期期中英语试卷 单项填空 反馈错误 加入收藏 正确率 : 100%
题目内容：
Tea contains a variety of substances beneficial to human health, but only in a dark, sealed box can it be well ______.
A.advised B.balanced C.informed D.preserved
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