垂向加积作用
参考答案：
在水流运动能量较低或静水条件下，主要是悬移物质从水体中垂直向下沉降，沉积学上把这这种沉积作用称为垂向加积。
The magazine was started by Becky, ______ I know. [ ]
A. as far as
B. as well as
C. as soon as
D. as much as
