单项选择题

The consistent winds blowing from the horse latitudes to the doldrums are called the（）.

A.prevailing westerlies
B.polar easterlies
C.trade winds
D.roaring forties

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The complete details of a crude oil washing system aboard your vessel，including the operating sequences and procedures，design characteristics，a description of the system，and required personnel will be found in the（）.

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C.Code of Federal Regulations
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