Choose THREE letters, A-E The invention of different gears on a bicycle affected which THREE of the following? A Wheel size B Ba

admin2015-08-06  39

问题 Choose THREE letters, A-E
The invention of different gears on a bicycle affected which THREE of the following?
A Wheel size
B Balance
C Rate of speed
D The back wheel
E Safety
F Downhill travel

选项

答案D

解析
转载请注明原文地址:https://jikaoti.com/ti/T0tYFFFM
0

最新回复(0)