相关soexpertindeedthathe的文学知识

问题详情：JohnSnowwasafamousdoctorinLondon—soexpert,indeed,thatheattendedQueenVictoriaasherpersonal  61  (physics).Buthebecameinspiredwhenhethoughtabout  62  (help)ordinarypeopleexposedtocholer...