Question

  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

Answer 1

B

试题分析：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。