本题目来源于试卷: gc textbook chapter 8 Rotational Motion，类别为 unclassified
[问答题]
A 21-speed bicycle hj ( m9flsvf* q+eqvsgu 70c:q-k8;q:qxlis9shx hd yhlb, -pdyd7v 8a;b55 h,as seven sprockets at the rear wheel and three at the pedal cranks. In which gear is it harder to pedal, a small rear sprocket or a large rear sprocket? Why? In which gear is it harder to pedal, a small front sprock,l,hvsh hxqbx -;8kd9 ya; :qdhpdsb7 y8 5l5iet or a large front sprocket? Why?
参考答案: 
本题详细解析:
暂无
| 
Post time 2025-2-18 20:00:22