相对市场占有率是指本企业产品的销售量与同一市场上最大竞争对手的同类产品的销售量之比。()
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产品组合的宽度是指企业生产经营的产品线的数量。()
If a vessel under tow starts jumping on its tow line,the most appropriate action to alleviate the condition is to ______.
A. Change course
B. Slow down
C. Heave to
D. Adjust tow line length