阿摩線上測驗
4. The distance travelled between TDC and BDC is the ____.
(A) tallness
(B) scope
(C) stroke
(D) expanse
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統計： A(16), B(20), C(557), D(9), E(0) #3307848
統計： A(16), B(20), C(557), D(9), E(0) #3307848
