问题
选择题
China supplies more than 90 percent of the world’s rare earth metals, but its reserves only ________ about one-third of the world’s total.
A.take up
B.make up
C.build up
D.set up
答案
答案:B
题目分析:句意:中国供应超过世界百分之90的稀土金属,但其储量只占世界总共的三分之一A. take up 采取; B. make up占据; C. build up建造; D. set up建立。根据句意,故选B。