A.(2,3) | B.(-2,3) | C.(-2,-3) | D.(-3,2) |
A.(2,3) | B.(2,-3) | C.(-2,-3) | D.(3,-2) |
A.(2,-3) | B.(2,3) | C.(3,-2) | D.(-2,-3) |
A.(3,2) | B.(2,-3) | C.(2,3) | D.(-2,-3) |
A.(1,2) | B.(-1,2) | C.(-1,-2) | D.(-2,-1) |
A.第一象限 | B.第二象限 | C.第三象限 | D.第四象限 |
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