In discussing oil pollution, one important fact to remember is that the problem remains the same （） heavy （） light oil is spilled into the water.<br>A:both；and<br>B:whether；or<br>C:neither；nor<br>D:because；so

In discussing oil pollution, one important fact to remember is that the problem remains the same （） heavy （） light oil is spilled into the water.
A:both；and
B:whether；or
C:neither；nor
D:because；so

出自：海船船员证

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