题目内容
(请给出正确答案)
[主观题]
It is believed that a new technique to ______will probably be found.A.recycle old aluminum
It is believed that a new technique to ______will probably be found.
A.recycle old aluminum products
B.discover more bauxite ores
C.make aluminum by putting ore particles under water
D.take out aluminum magnetically from poorer ores
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