题目

  The Matschie’s tree kangaroo is one of 10 species of tree kangaroos, all of which are endangered or threatened. A tree kangaroo is typically about the size of a raccoon (浣熊) and weighs around 19 pounds. They live in the high canopy (树冠) of the rainforest , about 100 to 150 feet in the air. The Matschie’s tree kangaroo is orange and brown with a face that looks like a teddy bear. They can leap 60 feet to the ground from trees without getting hurt. In 1996, Dr Lisa Dabek helped found the Tree Kangaroo Conservation Program (TKCP). Now, 16 years later, though still endanger如图，直线y=kx+b与坐标轴的两个交点分别为A（2，0）和B（0，-3），则不等式kx+b+3≥0的解集是A.x≥0B.x≤0C.x≥2D.x≤2