JO A: 1.8~2.0; B: 1.5~2.0; C: 1.8~2.5; D: 2。
JO A: 1.8~2.0; B: 1.5~2.0; C: 1.8~2.5; D: 2。
7.已知jo(Fe3+/Fe2+)=0.77V,jo(Sn2+/Sn)=-0.14V,jo(Sn4+/Sn2+)=0.15V,jo(Fe2+/Fe)=-0.41V。在标准状态下,下列各组物质中不能共存的是
7.已知jo(Fe3+/Fe2+)=0.77V,jo(Sn2+/Sn)=-0.14V,jo(Sn4+/Sn2+)=0.15V,jo(Fe2+/Fe)=-0.41V。在标准状态下,下列各组物质中不能共存的是
图示车轮质量为M,半径为R,车轮绕通过质心的轴O转动。已知转动的角速度为ω,则车轮的动量为() 。[img=195x182]17e0b908655e6e3.jpg[/img] A: MRω B: 0 C: JOω D: JOω2/2
图示车轮质量为M,半径为R,车轮绕通过质心的轴O转动。已知转动的角速度为ω,则车轮的动量为() 。[img=195x182]17e0b908655e6e3.jpg[/img] A: MRω B: 0 C: JOω D: JOω2/2
合适的工作 a ______jo
合适的工作 a ______jo
He’s not qualified ____ this jo
He’s not qualified ____ this jo
It was_________ that we had to ask them for help. A: a so big work B: a so big jo C: such a big work D: such a big jo
It was_________ that we had to ask them for help. A: a so big work B: a so big jo C: such a big work D: such a big jo
Why Benjamin left his last jo A: Stressful jo B: Hopeless promotion C: No growth opportunities D: Unsatisfactory salary E: Incompetent boss
Why Benjamin left his last jo A: Stressful jo B: Hopeless promotion C: No growth opportunities D: Unsatisfactory salary E: Incompetent boss
Who do you think is the most ________ (suit) for the jo
Who do you think is the most ________ (suit) for the jo
2. What is Jane’s mother’s jo
2. What is Jane’s mother’s jo
Where did Mike get his first jo
Where did Mike get his first jo