单项选择 适中0.65 引用1 组卷20
We get ________ from plants.
A.cotton | B.skin | C.wool | D.sand |
19-20六年级下·上海·单元测试
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All the walls of the building are made of ________, so all the rooms are very bright.
A.cotton | B.grass | C.stone | D.glass |
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