【单选题】— What do you think we should do after dinner? — Why don't we get _______ beer at the Karaoke bar down the street? It is kind of _______ fun to hear all the band singing.
【单选题】根据量子力学,氢原子中电子的运动状态可用n,l,ml,ms四个量子数来描述,其中用来确定电子轨道角动量在外磁场方向上的分量的量子数为( )
【多选题】用于储存和保管产品.材料而不对外出售的包装物,应按其价值大小和使用年限长短,分别在()账户核算。
【单选题】电位滴定法中用E-V曲线法确定滴定终点时,哪一点为滴定终点
【单选题】轨道运动状态为 ,可用来描述的量子数为......... ( )
【判断题】A bunch of Americans are
going to a karaoke bar.
【简答题】Mr Brown and his wife had a small bar(酒吧) near a railway station. The bar didn't close until midnight because people came to drink while they were ___21___ for trains. So the business was good. At two...
【单选题】Pauli原理的正确叙述为()
A.
电子体系的空间波函数对于交换电子必须是反对称的
B.
原子中每个电子的运动状态必须用四个量子数来描述
C.
同一原子中不可能有四个量子数完全相同的两个电子
D.
每个自旋-轨道最多只能容纳自旋方向相反的两个电子
【多选题】用于储存和保管产品 、 材料而不对外出售的包装物 , 应按其价值大小和使用年限长短 , 分别在 ( ) 或 ( ) 账户核算 .
【单选题】What is the advantage of a Japanese Karaoke box over a Karaoke bar?
A.
There are no unfamiliar people watching you so you won't feel nervous.
B.
It is more technologically advanced.
C.
The employees are friendlier.