判断题

作用在结构或构件上的外力可分为主动力(荷载)和被动力(约束反力)

答案：正确

你可能感兴趣的试题

单项选择题

Chinese Tunic Suit, or Zhongshan Zhuang, also called the Yat-sen Suit, is designed by Dr. Sun Yat-sen by combining the western-style suit and Chinese attire.
A、正确
B、错误

单项选择题

给出如下代码,可以输出"Python"的是（）。s = 'Python is beautiful!'
A、print(s[0:6].lower())
B、print(s[-21: -14].lower)
C、print(s[:-14])
D、print(s[1:6])