1、 Which one is not appropriate for a formal greeting?
答案: How’s it going?
2、 When you want to introduce yourself, you can say the following sentence except?
答案: Hi, how are things?
3、 Find the responses used to greet people in a informal conversation.
答案: I’m fine, thanks.;
It’s great to see you too!;
I’m fine, and you?
4、 Find the expressions that can introdu
1、 In the history of elasticity theory, who first investigated the contact mechanics between deformable elastic bodies
答案: Hertz
2、 How many elastic constants do the most anisotropic elastic solids have
答案: 21
3、 The fundamental assumptions of elasticity theory include:
答案: Continuity;
Homogeneity;
Isotropy;
Small Deformation;
1、 清空 MATLAB 工作空间内所有变量的命令是
答案: clear
2、 当在命令行窗口执行命令时，如果不想立即在命令行窗口中输出结果，可以在命令后加上（ ）。
答案: ;
3、 如果x=1: 2 : 10,则x(1)和x(5)分别是( )
答案: 1，9
4、 已知a为3×5矩阵，则执行完a(:,[2,4])=[]后，a为
答案: 3×3矩阵
5、 设A=[1 2 3;4 5 6;7 8 9],.