皮皮学，免费搜题
登录
搜题
【单选题】
What's the average annual growth rate for China's e-commerce trade for the past three years?A.
1
B.
2
C.
3
D.
4
E.
5
F.
6
G.
7
拍照语音搜题，微信中搜索"皮皮学"使用
参考答案：
参考解析：
知识点：
皮皮学刷刷变学霸
举一反三
【简答题】In a Stern-Gerlach experiment, the beams of an atom with 6 S 5/2 will split into _________________ parts; the beams of an atom with 6 G 3/2 will split into _________________ parts .
【单选题】The magnetic field in Stern-Gerlach experiment is ( )
A.
Strong
B.
Weak
C.
Homogeneous
D.
Inhomogeneous
【简答题】Stern(斯特恩)和Gerlach(革拉赫)的实验说明电子具有______。
【单选题】How many lines were observed, when the silver atoms were taken in Stern-Gerlach experiment?
A.
One
B.
Three
C.
Two
D.
Four
【单选题】指出下述曲轴箱油取样的操作错误（）。
A.
在完车后取样
B.
应在分油机前取样
C.
取样时应在取样阀处先放掉二倍取样瓶空积再取样
D.
取样后取样瓶应密封并标明使用累计小时等
相关题目：