题目内容：
图示体系的自振频率(不计竖杆自重)为：
A．
B．
C．
D．
参考答案：
答案解析：
单选题：图示体系的自振频率(不计竖杆自重)为：
- 题目分类：基础考试
- 题目类型：单选题
- 查看权限：VIP
A．
B．
C．
D．
A．
B．
C．
D．
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