一种焊接方法只有一条电弧静特性曲线。( )_爱下问搜题

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问题判断题

一种焊接方法只有一条电弧静特性曲线。( )

答案

参考答案：错

选择题

—Do you know _______ the soldiers came to Yingxiu Town?
—The roads were badly broken. They had to walk there.

A. why
B. when
C. how
D. where

判断题

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