下说法正确的是（ ）
A：电场线的方向就是电荷所受电场力的方向
B：电场线上某一点的切线方向即为该点的场强方向
C：电场中某一点的场强大小与该点是否存在电荷无关
D：电场中某一点的场强方向与该点是否存在电荷有关
It shows the importance of wildlife protection, but I'd like to help ____.
There are fewer and fewer tigers in India. The situation will continue ______ humans stop hunting them for their fur and bones.
