皮皮学，免费搜题
登录
搜题
【单选题】
轴向拉、压杆,由截面法求得同一截面的左右两部分的轴力,则轴力的大小相等,而( )。A.
方向相同,符号相同
B.
方向相反,符号相同
C.
方向相同,符号相反
D.
方向相反,符号相反
拍照语音搜题，微信中搜索"皮皮学"使用
参考答案：
参考解析：
知识点：
皮皮学刷刷变学霸
举一反三
【简答题】对外界抵抗力最强的是
【简答题】对外界抵抗力最强的是 查看材料
【单选题】SECTION 2 (10 points) Listen to the following short statements and then choose one of the answers that best fits the meaning of each statement. There are 10 questions in this section, 1 points for eac...
A.
He learned a lot of experience from observing the street life.
B.
He learned how to take precautions against the criminals.
C.
He learned to be smart by the life in New York.
D.
He was confident as he walked through Times Square to his office every day.