If there are more than two numbers in a certain list, is each of the numbers in the list equal to 0 ?
(1) The product of any two numbers in the list is equal to 0.
(2) The sum of any two numbers in the list is equal to 0.
PP詳解的答案是B,
詳解中A的解釋是"任何數相乘只要數列有一個0,乘積為0,但不代表數列均為0,不充份"
但是我覺得A選項有提到"any two numbers",
雖然任一個數為0乘積就會是0,
要每一次都抽到兩個中至少有一個是0的機會應該只有所有數都是0的情況才有可能吧!
請大家提供一點建議呀!
謝謝~~
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