右侧标志提醒前方道路正在施工。
参考答案：对
解析：图中是注意前方道路正在施工标志：用以告示前方道路施工，车辆应减速慢行或绕道行驶。
Recently I bought an ancient Chinese vase, ______ was very reasonable.
A．the price of it
B．which price
C．its price
D．the price of which
剂量当量的单位sv与rem的关系是
A．1Sv=10-1rmeB．1Sv=10-2remC．1Sv=10-3remD．1Sv=10remE．1Sv=102rem
