阿摩線上測驗
7. The piston locates at _______ , the volume above piston is the cylinder volume.
(A) BDC
(B) TDC
(C) above scavenging port
(D) below scavenging port
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統計： A(836), B(285), C(57), D(22), E(0) #2778102
統計： A(836), B(285), C(57), D(22), E(0) #2778102
