4. The distance travelled between TDC and BDC is the ____.
(A) tallness
(B) scope
(C) stroke
(D) expanse
答案:登入後查看
統計: A(13), B(19), C(478), D(8), E(0) #3307848
統計: A(13), B(19), C(478), D(8), E(0) #3307848