【单选题】
在建筑平面图中，一般使用有四条直线元素构成的多线绘制窗子。那么在厚度为240mm的结构墙上绘制窗线，设置多线样式时，四条直线元素的偏移量分别应该是（ ）。
①
120、40、-40、-120
②
240、120、-120、-240
③
120、60、-60、-120
④
240、160、-160、-240
【简答题】
以下两条if语句可合并成一条if语句为[填空1]。if(a=b) else if(ab) printf(* * * * y=%d\nelse printf(# # # # x=%d\n
【单选题】
尺寸界限用（）绘制。
①
Normal
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7.8 磅
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false
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false
EN-US
ZH-CN
X-NONE
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mso-padding-alt:0cm 5.4pt 0cm 5.4pt;
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粗实线
②
细
Normal
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7.8 磅
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实线
③
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点划线
④
Normal
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mso-style-parent:"";
mso-padding-alt:0cm 5.4pt 0cm 5.4pt;
mso-para-margin:0cm;
mso-para-margin-bottom:.0001pt;
mso-pagination:widow-orphan;
font-size:10.5pt;
mso-bidi-font-size:11.0pt;
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虚线