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地基处理的方式有哪些？

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跨区间无缝线路应按单元轨节等距离设置位移观测桩，桩间距离不宜大于（）m。

跨区间无缝线路每组道岔应设置（）对位移观测桩。

Which of the following is NOT included in the personal history: ()

A. vaccination
B. occupation
C. marriage

Which of the following is NOT the content of physical examination: ()

A. allergy
B. vital signs
C. general inspection