叠氮钠可抑制以下部位的电子传递 ()
A.NADH→CoQ
B.FADH→CoQ
C.Cytb→Cytc1
D.细胞色素氧化酶→O2。
参考答案:D
In a value-weighted index firms with:()
A. larger market caps have lesser impacts on the index.
B. greater market caps have greater impacts on the index.
C. higher stock prices have greater impacts on the index.
某结晶物质经硅胶薄层色谱,用一种展开剂展开,显示单一斑点,所以该晶体为一单体。