公开、公平、公正是证券市场监管的 ( )
A.目的
B.内容
C.前提
D.原则
参考答案:D
Just as the soil is a part of the earth, () the atmosphere.
A. as it is
B. the same is
C. so is
D. and so is
齿轮传动按啮合方向的不同,可分为外啮合齿轮传动、内啮合齿轮传动,()。