构型。
参考答案:
分子立体异构体中的取代原子或基团以共价键相连时在空间的取向。构型变化,一定有化学键的断裂和手性的改变。
A 1 - month loan has a holding period yield of 1 percent. What is the annual yield of this loan on a bond -equivalent basis()
A. 6.15%.
B. 12.30%.
C. 12.00%.
作物杂种品种都有哪些类别?