问题
选择题
Some minerals are quite common, others are regionally ________, and still others are rare on the earth.[ ]
A. attributed
B. distributed
C. contributed
D. scattered
答案
答案：B
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Some minerals are quite common, others are regionally ________, and still others are rare on the earth.[ ]
A. attributed
B. distributed
C. contributed
D. scattered
答案：B
