题目

He behaved naturally ___________ nothing had happened to him. A . even if B . only if C . as if D . not that 答案:C以下说法正确的有(      ) (1)不是正数的数一定是负数;      (2) 表示没有温度; (3)小华的体重增长了-2 kg表示小华的体重减少2 kg; (4)数轴上离原点越远,数就越小;  (5)多项式是四次三项式 A.2个        B. 3个       C. 4个        D. 5个
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