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问题
选择题
单项选择。
they sheep?[ ]
A. Am
B. Is
C. Are
答案
答案：
C
选择题
It is less well-known that fully 80 percent of the world's fertilizer
are met by synthesizing
ammonia from natural gas and steam.
A. requirements
B. acquirement
C. treatment
D. agreement
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问答题
最好的软玉产自我国的什么地区？最好的品种是什么？
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