“鱼儿离不开水”，对此最恰当的解释是（ ）
A：生物的生存影响环境
B：生物的生存适应环境
C：生物的生存改变环境
D：生物的生存依赖环境
It's a squares.
Tom seldom, ______, paid for the software on his computer. That is, he used lots of pirated software.
