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【单选题】

The first modern Olympics attracted athletes from ten countries.

A.
Y
B.
N
C.
NG
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参考答案:
参考解析:
.
刷刷题刷刷变学霸
举一反三

【单选题】图样中绘制斜度及锥度符号时,其线宽为:( )

A.
h/14(h为字体高度)
B.
h/10
C.
d/2(d为粗实线线宽)
D.
d/3