若地形点在图上的最大距离不能超过三厘米，对于1/500的地形图，相应地形点在实地的最大距离应为（）。
A.15m
B.20m
C.30m
参考答案：A
---Millie，is there anything else you want to know about Yangzhou paper cutting?
---Yes，I am still wondering __________ .
A．how is the Yangzhou paper cutting made
B．when did the Yangzhou paper cutting start
C．how many paper cutting museums are there in Yangzhou now
D．if the students learn paper cutting at school
小学生排队步行去郊游，每分钟步行60米，队尾的王老师的以每分步行150米的速度赶到排头，然后立即返回队尾，共用10分钟，求队伍的长度( )
A．630B．750C．900D．1500
