Firstitwasjogging.thenaerobics.nottoolongago,Americansracewalking.a.inventedb.createdc.discoveredd.foundout请问选择哪一个,请解释下原因,

Question

First it was jogging.then aerobics.not too long ago,Americans ___ race walking.
a.invented b.created c.discovered d.found out
请问选择哪一个,请解释下原因,

Answer 1

我觉得是因为jogging 慢跑,race walking竞走,这样的运动是人们本来就会,本来就存在的,所以不需要人发明或者创造
像snowboarding 滑雪 之类人为创造的运动,才用invent ,发明