Diesel powered industrial trucks on a ship that are provided with safeguards to the exhaust，fuel，and electrical systems are designated（）.<br>A:DEFE<br>B:DE<br>C:DS<br>D:DES

Diesel powered industrial trucks on a ship that are provided with safeguards to the exhaust，fuel，and electrical systems are designated（）.
A:DEFE
B:DE
C:DS
D:DES

出自：海船船员证

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