单项选择题

A．Because it is a personal and economic problem as well as a social one.
B．Because it is a totally personal problem.
C．Because it is a huge burden on economics.
D．Because it is social problem.
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A．momentB．movementC．ideaD．affair
A．moment
B．movement
C．idea
D．affair
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A．beneathB．underC．downD．below
A．beneath
B．under
C．down
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