Youhave three layers of skin which act as a ______(屏障) against disease, poisons -组卷网

单词拼写-根据汉语意思填空较易0.85 引用3 组卷60

You have three layers of skin which act as a ______(屏障) against disease, poisons and the sun’s harmful rays. (根据汉语提示单词拼写)

19-20高二上·江西南昌·阶段练习

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