2020-12-09到2020-12-31
1、 Which dynasty did the Chinese knot originate from.
A:Tang and Song Dynasties
B:Yuan Dynasty
C:Ming Dynasty
D:Qing Dynasty
答案: Tang and Song Dynasties
2、 How many threads are braided with a decorative knot.
A:One
B:Two
C:Three
D:Four
答案: One
3、 When did UNESCO list the Great Wall as a World
1、 In a questionnaire, respondents are asked to mark their gender as male or female. Gender is an example of the（ ）
答案: B.nominal scale
2、 The nominal scale of measurement has the properties of the（ ）.
答案: D.None of these alternatives is correct.
3、 The scale of measurement that is used to rank order the observation for a variable is called the（ ）.
答案: B.
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;