题目内容
(请给出正确答案)
[主观题]
There are nearly 4,000 Universities and colleges in China.A.YB.NC.NG
There are nearly 4,000 Universities and colleges in China.
A.Y
B.N
C.NG
提问人:网友bjhxyp
发布时间:2022-01-06
There are nearly 4,000 Universities and colleges in China.
A.Y
B.N
C.NG
二次函数y=(1/16)x2的图象是一条抛物线,它的焦点坐标是()
A.(-4,0)
B.(4,0)
C.(0,-4)
D.(O,4)
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