3 |
2 |
3 |
2 |
π |
8 |
5 |
4 |
1 |
2 |
1 |
2 |
2 |
π |
4 |
2 |
3 |
2 |
2 |
3 |
2 |
3 |
2 |
3 |
2 |
π |
8 |
5 |
4 |
3π |
2 |
π |
8 |
5 |
4 |
13π |
6 |
π |
3 |
1 |
2 |
| ||
2 |
π |
6 |
π |
6 |
π |
3 |
π |
6 |
π |
2 |
3 |
3 |
π |
2 |
π |
2 |
π |
2 |
A.三点确定一个平面 |
B.平面α和β有不同在一条直线上的三个交点 |
C.梯形一定是平面图形 |
D.四边形一定是平面图形 |
5π |
4 |
π |
8 |
π |
3 |
π |
3 |
π |
4 |
π |
4 |
A.0 个 | B.1个 | C.2个 | D.3个 |
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