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【简答题】
家蚕吐丝结茧后的蚕茧除白色外，还有哪几种色系?()
A.红色系
B.黑色系
C.绿色系
D.黄色系
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举报参考答案：
举一反三
【单选题】I hear many parents complaining that their teenage children are rebelling．I wish it【C1】______so．At your age you【C2】______be growing away from your parents．You should be learning to【C3】______on your ow...
A.
is
B.
were
C.
have been
D.
had been
【多选题】《茧丝质量监督管理办法》所称的茧丝是蚕茧和丝的统称，蚕茧主要包括（）等.
A.
桑蚕鲜茧
B.
桑蚕干茧
C.
柞蚕鲜茧
D.
柞蚕干茧
相关题目：
【单选题】I hear many parents complaining that their teenage children are rebelling．I wish it【C1】______so．At your age you【C2】______be growing away from your parents．You should be learning to【C3】______on your ow...
A.
is
B.
were
C.
have been
D.
had been
【多选题】《茧丝质量监督管理办法》所称的茧丝是蚕茧和丝的统称，蚕茧主要包括（）等.
A.
桑蚕鲜茧
B.
桑蚕干茧
C.
柞蚕鲜茧
D.
柞蚕干茧
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