The second paragraph mainly demonstrates______.
A. space garbage"s hazard towards people
B. that people produce waste of all kinds with large amount
C. whether people should take recycling into account
D. Ken Noguchi"s five clean-up expeditions
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左蓄电池开关接通，接通左蓄电池接触器，使哪个汇流条给左蓄电池充电？
A. 左应急汇流条
B. 右应急汇流条
C. 左主汇流条
D. 右主汇流条
潜力泛指是人类生来就具备的潜在能力，是一种尚未被开发利用的、没有实际化和外显化的能力，也包括生理潜力和心理潜力。()
作息不规律对人体没有很大的危害，在当今社会比不明显()
It can be inferred from Paragraph 1 that______.
A. a large part of the Pacific doesn"t have shipping lanes
B. most of the rubbish in the Pacific comes from the U.S.
C. the first link of the food chain of sea lives on plastic
D. the quantity of rubbish in the Pacific increases day by day
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