【单选题】The unit of measurement known as foot has originally based on the average size of the human foot.
A．measurement
B．has
C．size
D．foot
网考网参考答案：B
网考网解析：
[解析] 应改为was。be based on：以……为基础。
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【单选题】The unit of measurement known as foot has originally based on the average size of the human foot.
A．measurement
B．has
C．size
D．foot
网考网参考答案：B
网考网解析：
[解析] 应改为was。be based on：以……为基础。
查看试题解析出处>>
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