单项选择题
The tone of the story shows the author believes the problem is ______.
A．difficult to solve, perhaps impossible
B．difficult to solve but not impossible
C．impossible to solve
D．beyond the question
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单项选择题
Most of the people of the world get ______.
A．enough food in the good years
B．insufficient food for all times
C．food from the "have" countries in bad years
D．richer than before
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单项选择题
The word holistic (Line 5, Para. 3) means
A．holy
B．hostile
C．whole
D．unholy
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