辩证的否定观认为，否定是
A．事物发展的波浪式前进B．事物发展的周期性C．事物发展的螺旋式上升D．新事物对旧事物既克服又保留的“扬弃”
参考答案：D
— Is he coming?
— It all ____ the weather. It's reported that it may rain. [ ]
A. takes on
B. gets on
C. depends on
D. turns on
ETF与一般指数型基金有何区别？
