AyoungAmericandoctorwassleepingwhensuddenlyhisdoorbellb...
问题详情：AyoungAmericandoctorwassleepingwhensuddenlyhisdoorbellbegantoring.Itwasalreadymidnight,butwhatcouldthedoctordo?Hehadtogetup,putonhiscoatandgodownstairs.Whenheopenedthedoor,hesawamanstandingwit...