（） the cylinder will contain a great weight of air and will be capable of burning a great quantity of fuel.<br>A:At the beginning of the compression stroke<br>B:At the beginning of the suction stroke<br>C:At the end of the working stroke<br>D:At the end of the exhaust stroke

（） the cylinder will contain a great weight of air and will be capable of burning a great quantity of fuel.
A:At the beginning of the compression stroke
B:At the beginning of the suction stroke
C:At the end of the working stroke
D:At the end of the exhaust stroke

出自：海船船员证

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