How Word splits the document window at random

1, first, we start Word2010, in order to give you a demonstration, I randomly opened a test paper, the top is the answer to the problem, the following is the topic. After the practice, the students do their own answer check.

2, because the topic is more, pull the scroll bar, the top of the standard answer is not seen, and then drag to the top, so repeatedly, the operation is too troublesome.

3, we try to split the window function, the left mouse button down the image of the red mark "-" button, pull down, and then to a position to release, forming two windows.

4, adjust the boundary of the pane, in the upper pane, drag the scroll bar, so that the screen shows the answer, the following shows the problem, so that we in the answer, directly drag the bottom of the window can be.