__, they lost no time in turning back.
A. Be afraid of being cut off
Being afraid of being cut off
C. Afraid of being cut off
D. To be afraid of being cut off
查看答案
There is a __.
A. two-hundred-meter-high building
B. two hundred meters high building
C. a high building two hundred meters
D. a building two hundred meters high
It was very__ you to stop and give me a lift.
A. thoughtful
B. thoughtfully
C. thoughtful of
D. thoughtfully of
修改显示模式会影响（）
A. 所有项目的视图
B. 只有当前的视图
C. 只有明细表与报告
D. 所有开启的视图
下列关于风管放置时的对正设置选项的具体内容说法正确的是（）
A. 水平对正是指以风管的“中心”、“左”或“右”侧作为参照，将各风管部分的边缘垂直对齐
B. 垂直对正是指以风管的“中”、或“底”或“顶”作为参照，将各风管部分的边缘水平对齐
C. 水平偏移是用于指定在绘图区域中的单击位置与风管绘制位置之间的偏移
D. 如果要在视图中距另一构件固定距离的地方放置管网，最好采用水平对正。
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