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【单选题】
下列表述正确的是
A.
图样的比例不必为图形与实物相对应的线性尺寸之比
B.
图样中的图形不论按照何种比例绘制，尺寸仍须按物体实际的尺寸数值注写
C.
注写的尺寸不是图样的组成部分
D.
图样中的尺寸单位，除标高及总平面以单位外，其他的必须以厘米（cm）为单位。
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【单选题】Paper _____ the fibres of plants for many years.
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【单选题】Recently, a possible alternative way of producing paper has been suggested by agriculturalists and environmentalists: a plant called hemp. Hemp has been cultivated by many cultures for thousands of ye...
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【简答题】Before Straus presented his paper, it has already been proved that ______ may affect the development of children.
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【单选题】Paper _____ the fibres of plants for many years.
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