分离度(R)表示相邻两色谱峰的分离程度,除另有规定外( )。
A.R=1.0
B.R≥1.0
C.R=1.5
D.R≤1.5
E.R>1.5
参考答案:E
解析:[知识点] 薄层色谱法
The bank is reported in the local newspaper, in broad daylight yesterday.
A.being robbed
B.having been robbed
C.to have been robbed
D.robbed
TCP协议是在七层协议的哪一层?()
A.网络层
B.传输层
C.会话层
D.数据链路层