AE |
AB |
AF |
AC |
MN |
AM |
AN |
AM |
AN |
1 |
2 |
AE |
AF |
1 |
2 |
AB |
AC |
AB |
AC |
AB |
AC |
MN |
AN |
AM |
1 |
2 |
AB |
AC |
1 |
2 |
AE |
AF |
1 |
2 |
AB |
1 |
2 |
AC |
MN |
1 |
2 |
AB |
1 |
2 |
AC |
MN |
1 |
4 |
AB |
1 |
4 |
AC |
1 |
2 |
AB |
AC |
1 |
4 |
1 |
4 |
1 |
4 |
1 |
4 |
1 |
2 |
3 |
16 |
1 |
2 |
MN |
| ||
4 |
e1 |
e2 |
e1 |
e2 |
e1 |
e2 |
A.1 | B.-1 |
C.±1 | D.任意不为零的实数 |
a |
b |
AB |
a |
b |
BC |
a |
b |
CD |
a |
b |
A.
| B.
| C.
| D.
|
AP |
PM |
PA |
PB |
PC |
A.-
| B.-
| C.
| D.
|
A.a=b | B.a-b=0 | C.a2-b2=0 | D.a+λb=0(λ∈R) |
OB |
1 |
3 |
OA |
2 |
3 |
OC |
AB |
BC |
A.3:1 | B.1:3 | C.2:1 | D.1:2 |
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