问题
多项选择题
脚手板可采用()材料制作,单块脚手板的的质量不宜大于30kg。
A.钢
B.塑料
C.木
D.竹
答案
参考答案:A, C, D
脚手板可采用()材料制作,单块脚手板的的质量不宜大于30kg。
A.钢
B.塑料
C.木
D.竹
参考答案:A, C, D
请根据句意从方框中选择合适的单词,并用其适当形式填空,使句子通顺。 (每小题1分,共5分)
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