题目

根据资料卡的内容介绍下面这种濒危动物的相关信息以及我们应该如何保护这种动物。 Name: Yangtze alligator(扬子鳄)Live in: The Changjiang RiverFood: birds, frogs, mice and so onNumber in the past: ManyNumber now: About 130 in the wildWhat can we do to help them?Keep the water clean. Don't hunt them for food. _______________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________一个不等式组的解集在数轴上表示出来如图所示，则下列符合条件的不等式组为A.B.C.D.