【单选题】
网考网参考答案：D
网考网解析：
If a and b had to be integers, the greatest a + b could be is 49 (when the numbers are 1 and 48). However, the variables do not have to be integers. If a =. 1, and b = 480, then ab = 48, and a + b = 480.1. Neither column is always greater, and the two columns are not always equal (D). document.getElementById("warp").style.display="none"; document.getElementById("content").style.display="block"; 查看试题解析出处>>
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