题目

In Yunan Province, the drought is still getting worse．More than two billion yuan and eleven million people are__________to drought relief work. A．determined             B．accustomed             C．adapted                   D．devoted 答案：  D无脊椎动物与脊椎动物的根本区别在于A.无脊椎动物的种数约占动物种数的95%B.无脊椎动物的种数约占动物种数的5%C.无脊椎动物身体里面没有由脊椎骨组成的脊柱D.无脊椎动物身体里面有由脊椎骨组成的脊柱