A．whether there is a steep decline in food aid since the 1990s.
B．whether food aid drives local farmers out of the market.
C．whether food aid displaces local products in developing countries.
D．whether food aid should be in the form of cash or agricultural products.
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A．quickly purchase food in an emergency.
B．flood markets with cheap imported food.
C．help local farmers with theft businesses.
D．attract more donors all around the world.
A．flexible.
B．unworkable.
C．the best way.
D．effective.
A．2,012 kilometers.
B．2,020 kilometers.
C．1,200 kilometers.
D．1,300 kilometers.