π |
3 |
A.(3,
| B.(3
| C.(3,
| D.(3
|
π |
3 |
π |
3 |
3 |
2 |
π |
3 |
3
| ||
2 |
3 |
2 |
3
| ||
2 |
|
2 |
π |
3 |
3 |
2 |
3
| ||
2 |
z |
r |
3 | ||
3
|
| ||
2 |
π |
4 |
2 |
π |
3 |
π |
4 |
A.(-1,3,-5) | B.(1,3,5) | C..(1,-3,5) | D.(-1,-3,5) |
A.(-2,1,-1) | B.(2,1,1) | C.(2,-1,-1) | D.(2,-1,1) |
A.(-4,-8,6) | B.(-4,8,-6) | C.(4,-8,-6) | D.(4,-8,6) |
A.x=-2 | B.y=1 | C.x=-2或y=1 | D.x=-2且y=1 |
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