The (auto)ignition temperature is that temperature atwhich（）.<br>A:no spark or flame is required to ignite gas or vapor<br>B:a fuel begins to give off explosive vapors<br>C:a fuel if ignited will continue to burn<br>D:a 1% mixture of the fuel with air will explode

The (auto)ignition temperature is that temperature atwhich（）.
A:no spark or flame is required to ignite gas or vapor
B:a fuel begins to give off explosive vapors
C:a fuel if ignited will continue to burn
D:a 1% mixture of the fuel with air will explode

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