资本运营以（）为中心的企业运作机制。
A.资本导向
B.效益导向
C.公平导向
D.利益导向
参考答案：A
There is no point arguing about what _____ the accident. The point is what to do with the victims of it.
A．led to
B．caused to
C．accounted to
D．resulted from
土壤富铝化的标志是土壤粘粒的SiO2／A12O3的比值明显上升。
