When the system vibrates in a fluid medium, the damping is ( )a)Viscous b) Columb c)Solid d)Fluid
A: None
B: None
C: None
D: None
A: None
B: None
C: None
D: None
举一反三
- print(print('Hello'))，输出为（ ）。 A: Hello None B: Hello C: None D: Hello None
- 要将a标签的下划线去掉，需要将其_________属性设为_________。 A: font-style, none B: list-style, none C: text-decoration, none D: border-style, none
- When impurity atoms replace the host atoms, it is called a/an solid solution A: Substitutional B: Vacancy C: Interstitial D: None of the avove
- When impurity atoms replace the host atoms, it is called a/an solid solution A: Substitutional B: Vacancy C: Interstitial D: None of the avove
- 下列语句的输出结果为：( )[img=384x82]17d60e5354e4c1e.png[/img] A: None None B: 3 None C: None 8 D: 3 8