25ϿЩ˵ACD
AʣһҲҪԹ
BæʱϵһǮҲȥ CˮͷˮϹؽ Dӡֽ÷
26ܵһξͽɹ𣿣D
AӲ B C϶ D
27ԱСһʱϰ࣬һϰ;УͻٵˣϿЩB
AСȻΥ˹˾涨³ڿԭ BӦϸչ˾涨С CСſͷ DżȻһΣӦ½ 28ڷָʾ𣿣D
AӲ B C϶ D
29ͬһֹ۵㣿D
A֪ʶҪ B˼ʹϵҪ CҪ DƷҪ
30ճУȽעʲôD
AʹԼװͷͷdz BԼЧ
C㷺ԼԴ
DԼҵˮƽ
31ΪһְҿԽԼΪɿD
AӲ B C϶ D
32ij˾ûרŵıԱҲûƶɨֵƶȣ칫ҵɹ˾ְ
ԱԼɨǸù˾ְԱ ȡһA AϰûûԼ BܱԼ
C˾бԼͬ£ȥ D쵼Լʱ
33ΪһְҿԽԼΪ飨D
AӲ B C϶ D
34ij˾ԱͻijһƷʱͨȡһD
AΪɹ˵ƷڵIJ֮ͻʵʱ˵ BʵǵؽܲƷ״ CʵǵؽܲƷŵ
DͬƷȽϣʵǵ˵˾Ʒŵ 35ù𣿣D
AӲ B C϶ D
36λסһ㶼涨쵼ȡһB
A۹ǷҪҪλ涨ѡ
BֻҪɹѡ۸͵ķ CֻҪɹסʲôķν
DסĵζԵλӰ죬ӦݹҪѡ 37ΪһְҿԽԼΪA
AӲ B C϶ D
38Aְijÿŵ绰ȷdzֶνBǷAǮҪأϿЩ˵D
AԶƶ֮ BΥµΪ
C龳µȷѡΪ÷dzֶΣͲҪǷ DĿֶǷ
39㲻ϲijͬ£Ҫԭ֮һΪA
Aϲڱ̸۱ Bϲڱ̸쵼 CԱ˺ãȴԶ Dϲҽ̸
40˵ͬһ۵㣿C
A쵼˼¾ҳҵı Bڶ쵼ҳҵı CϸҵĹƶҳҵı DҳҵҪ쵼 41
һֹ۵㣬ϰ˵ǣA
A һ
B ̸Ͽ֣Ҳ̸Ϻܷ C ΪѶΪ֮ D dzʹ 42
ΪһְҿԽԼΪA
A Ӳ B C ϶ D
43ΪһְҿԽԼΪԣD A Ӳ B C ϶ D
44Сڵλĺѣ㷢ùʱ˽ͨȡһִB
A Լأ͵û B ע⣬쵼ӳ C ֱ쵼ӳһλΪ D ע⣬ֳĬ 45òĹ𣿣A A Ӳ B C ϶ D
46ΪһְҿԽԼΪȷD A Ӳ B C ϶ D
47ΪһְҿԽΪ䵭A A Ӳ B C ϶ D