【答案】 D
82. 7356-!-item-!-187;#058005489
Is
x2 y2 可用坐标抛物线看出
x y
--------------------------------------------------------------------------------------------------------------------------------------------------------
【答案】A
x2 y2 平方已將正負數的影響拿掉 選項成立
x y 的情況下,y有可能為負數。如此一來y的絕對值不一定小於x。 選項不成立
99. 9270-!-item-!-187;#058006322
If m 0 and n 0, is? 相减
m n
x 0
【答案】C
100. 9327-!-item-!-187;#058006480
In the rectangular coordinate system shown above, does the line k intersect quadrant II ?
The slope of k is - 注意:答案是否定的,但只要确定,也是对的
The y-intercept of k is -6.
【答案】A
110. 10493-!-item-!-187;#058007240
If z^n = 1, what is the value of z ?
n is a nonzero integer.
z 0
【答案】C
113. 11760-!-item-!-187;#058007855
For a certain set of n numbers, where n 1, is the average equal to the median?
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