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【单选题】
A painting in our local museum has just been shown, by using X-rays, to be recent and thus not the work of an old master as previously thought This has caused its value to drop from millions to almost nothing. Yet no art experts were able to deted that it was not the real thing'. This means that the value of a painting is determined by who painted it rather than any intrinsic artistic merit. Which of the following, if true, would most strengthen the above argument?A.
The works of some forgers of art now sell forvery large amounts of money.
B.
Many old masters changed their style during their career.
C.
In controlled tests, art experts have been shown to be very good at identifying the painters ofworks they have not seen before.
D.
Until its true origin was discovered, the painting in our museum was widely regarded as a masterpiece.
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【单选题】下列关于建筑剖面图的表示方法．错误的是（ ）。
A.
比例为1：50的剖面图，宜丽出楼地面、屋面的面层线．抹灰层的而层线应根据需要而定。
B.
比例为1：100-1：200的剖面图，可画简化的材料图例，如砌体墙涂红、钢筋混凝土涂黑等），但宜画出楼地面、屋面的面层线。
C.
比例为1：300的剖面图，可不画材料图例，剖面图的楼地面、屋而的面层线ⅡJ不画出。
D.
剖切到墙身、屋面板、楼板、楼梯、楼梯问的休息平台、阳台、雨篷及门、窗过梁等用细实线表示
【单选题】下列关于建筑剖面图的表示方法，错误的是（ ）。
A.
比例为1：50的剖面图，宜画出楼地面、屋面的面层线，抹灰层的面层线应根据需要而定。
B.
比例为1:100一1：200的剖面图，可画简化的材料图例，（如砌体墙涂红、钢筋混凝土涂黑等），但宜画出楼地面、屋面的面层线。
C.
比例为1:300的剖面图，可不画材料图例，剖面图的楼地面、屋面的面层线可不画出。
D.
被剖切到的墙身、屋面板、楼板、楼梯、楼梯间的休息平台、阳台、雨篷及卜1、窗过梁等用细实线表示
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