问题
单项选择题
In the rectangular quadrant system shown above, which quadrant, if any, contains no point (x,y) that satisfies the equation x2-2y=3 ？（）
A. none
B. Ⅰ
C. Ⅱ
D. Ⅲ
E. Ⅳ
答案
参考答案：A
解析：
The equation describes a parabola facing upward that crosses the y-axis