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A．Separating different types of garbage.
B．Disposing of trash properly.
C．Having a family clean-up party.
D．Saving water whenever using it.
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单项选择题
A．The victory over one’s fellow runners.B．The victory over former winners.C．The victory of will-power over fatigue.D．The victory of one’s physical strength.
A．The victory over one’s fellow runners.
B．The victory over former winners.
C．The victory of will-power over fatigue.
D．The victory of one’s physical strength.
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