由图形在△ABC中,可得:
S△ABD |
S△ADC |
BD |
CD |
在△PBC中,
S△BDP |
S△CPD |
BD |
CD |
∴
S△ABP |
S△APC |
| ||
|
BD |
CD |
∴①正确;
S△BPC+S△APC |
S△APC |
S△BPC |
S△APC |
S△APC |
S△APC |
S△BPC |
S△APC |
由①
S△ABP |
S△APC |
BD |
CD |
S△BPC |
S△APC |
BF |
AF |
∴
S△BPC+S△APC |
S△APC |
BF |
AF |
AB |
AF |
∴②不正确;
CE |
AE |
AB |
BF |
FP |
PC |
S△BPC |
S△APB |
S△APB |
S△BFP |
S△BFP |
S△BPC |
∴③正确.
故①③正确.
故选:B.
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