学校举行运动会，参加跑步的有162人，参加跳绳的有18人．参加跑步的人数是跳绳的几倍？
162÷18=9，
答：参加跑步的人数是跳绳的9倍．
New Zealand's universities offer a wide _____of courses in many fields, including the arts, economics,
communications and technology. [ ]
A. range
B. process
C. trend
D. bunch
