读一读，排一排。

A. How many pencils do you have?

B. One, two, three... nine. You have nine pencils.

C. Look at my new pencils.

D. That's right.

E. Guess!

正确的顺序是: _________________________________________

垂直于走向线的地质构造面或岩层倾斜方向线在水平面上的投影称为（）。

A.走向

B.倾向

C.延向

D.斜向