采区
参考答案：
在盘区中沿走向每隔—定距离，掘进采区巷道连通相邻两个盘区运输巷道，将盘区划分为独立的回采单元，这个单元称为采区。
Which of the following makes Andy Warhol unique as an artist().
A.He was able to make a huge amount of money when he was still alive.
B.He pioneered an art movement unparalleled in other countries.
C.He is the subject of the world’s largest museum devoted to a single artist.
D.He is known to have created the most expensive piece of visual art in history.
如下图所示，某大型企业的厂区A(有空气污染)与生活区B拟建于一条大河的两侧，其坐标表示大致为(单位：km)：厂区位于点A(0，3)，生活区位于点B(2.5，0)，河的两岸分别为直线Y=1与Y=1.5。为方便企业职工在厂区与生活区之间来往，还需要在该条河上建一座垂直于两岸的桥。为使企业职工通过该桥往来厂区与生活区之间的距离最短，桥应建在坐标X=（）处。
A．1
B．1.25
C．1.5
D．2
