conclude和involve的区别

vt.vi.推断；决定,作结论；结束
vt.包含；牵涉；使陷于；潜心于
两者区别太大了,根本没有交集啊.Working as a fireman is demanding,which___respnding to emergency situations,rescuinglives and protecting properties from all types of accidents.A involvesBconcludes CadmitsDclaims正确答案是A为什么D claims 要求，需要 Working as a fireman is demanding, which claims responding to emergency situations, rescuing lives and protecting properties from all types of accidents.正确答案是A，我想问为什么选A而不是BA involves 包含，涉及 Working as a fireman is demanding, which involves responding to emergency situations, rescuing lives and protecting properties from all types of accidents.作为一名消防队员要求很苛刻，包括在所有类型的意外事故中应对紧急情况，拯救生命和保护财产。 我觉得claim也说得通claim怎么可能说得通，至少主语得是人吧，可是which只能指代物。我是问为什么不选B我不是说了吗？conclude 推断；决定，作结论；结束。你觉得有可能吗？ claim 可以是物：If something or someone claims your attention, they need you to spend your time and effort on them.