题目内容
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[主观题]
In arithmetic the rules of addition are basic, and all the other rules are built on this _
_____.
A．basis
B．bases
C．base
D．basises
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题目内容
（请给出正确答案）
如果结果不匹配，请 联系老师 获取答案
题目内容
（请给出正确答案）
A．basis
B．bases
C．base
D．basises
如果结果不匹配，请 联系老师 获取答案
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