在距竖直焊缝或其他障碍物（）mm处，用钢针划起点竖线，作为钢围尺的零刻线.
A.200
B.300
C.400
D.500
参考答案：D
The church is ______ on the hillside, about a mile from the town.
A．situated
B．lied
C．stationed
D．placed
集中型人口城市化
