banks around the world.Many have been criticized for their poor security, ageing refrigeration(冷藏)systems and vulnerable electricity supplies.
The scheme won UN approval at a meeting of the Food and Agriculture Organization in Rome
in October 2005.A feasibility study said the facility“would essentially be built to last forever”.
46.The Norwegian yault is important in that_________________.
A.the seeds in it represent the rarest varieties of world’S crops
B. the seeds in it could revive agriculture if the worst thing should happen
C.it is built deep in a mountain on a freezing-cold Arctic island
D.it is strong enough against all disasters caused by man and nature
答案：B
47.The seed bank project was proposed by_____________.
A.the Norwegian government B.Norwegian farmers
C. Spitsbergen residents D. agricultural scientists
答案：D
48. The seeds in the vault will be stored___________________.
A.as samples of world crop varieties
B. as produc of world plant breeding
C.for&n
