a |
b |
a |
a |
b |
A.23 | B.57 | C.63 | D.83 |
a |
a |
(-4)2+32 |
b |
a |
b |
a |
a |
b |
a |
b |
a |
b |
a |
b |
a |
b |
a |
b |
a |
b |
c |
a |
c |
b |
c |
a |
b |
c |
a |
b |
c |
A.1 | B.2 | C.3 | D.4 |
a |
a |
b |
a |
b |
A.-10 | B.10 | C.-20 | D.20 |
b |
c |
a |
a |
c |
b |
c |
A.一定平行但不相等 | B.一定垂直 |
C.一定平行且相等 | D.无法判定 |
a |
b |
a |
b |
a |
b |
A.7 | B.
| C.4 | D.12 |
BC |
a |
CA |
b |
a |
b |
A.
| B.3 | C.
| D..1 |
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