As the inlet ports are opened by the downward moving piston, the scavenging air enters and displaces the remaining exhaust gas in preparation for ________.
A the combustion
B burning
C the next cycle
D the injection
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As the inlet ports are opened by the downward moving piston, the scavenging air enters and displaces
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e in the middle of the lake,with one end of the pipe near the bottom and the other end in the air.
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e in the middle of the lake,with one end of the pipe near the bottom and the other end in the air.
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e in the middle of the lake,with one end of the pipe near the bottom and the other end in the air.
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e in the middle of the lake,with one end of the pipe near the bottom and the other end in the air.