题目

    He pointed to ______ looked like a tomb and said, “Ghost.”     A. that                   B. what     C. which                  D. as 答案:B14、设m、n满足m2n2+m2+n2+10mn+16=0,则(m,n)=(  )A、(2,2)或(-2,-2)B、(2,2)或(2,-2)C、(2,-2)或(-2,2)D、(-2,-2)或(-2,2)
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