The fuel injector injects a fine spray of fuel into the hot air and combustion （）, producing much high pressure in the gases.<br>A:has begun<br>B:takes place<br>C:occurs<br>D:happens

The fuel injector injects a fine spray of fuel into the hot air and combustion （）, producing much high pressure in the gases.
A:has begun
B:takes place
C:occurs
D:happens

出自：海船船员证

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