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【单选题】
微分方程满足条件的特解是（）。A.
ax-1
B.
x/a+1
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皮皮学刷刷变学霸
举一反三
【简答题】principal principle A bicycle or a motorcycle is built on the same though the force that moves them is different.
【单选题】A bicycle or motorcycle is built on the same , though the force that moves them is different.
A.
principal
B.
principle
【单选题】A bicycle or a motorcycle is built on the same __ , though the force that moves them is different.
A.
principal
B.
principle
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