ANutrient-rich.
BNutrient-poor.
CDependent.
DInterdependent.
ANutrient-rich.
BNutrient-poor.
CDependent.
DInterdependent.
A1 in two.
B25%.
C60%.
D40%.
AInsecurity.
BTerrorism.
CDisease.
DEnvironmental deterioration.
AThe company directly manages the retailers.
BThe company is trying to directly manage the retailers so that there will be no middlemen.
CThe company is now establishing the channels of distribution.
DThe company is now to get rid of the middleman.
对
错
对
错
对
错
对
错
对
错
AThe problem of extracting methane hydrates is retrieving methane gas and bringing it to the surface.
BIt is very easy to find methane hydrates.
COnly Japan wants to extract methane hydrates.
DMethane hydrates are a major source of fuel in Japan.
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