A warm-hearted （热心的) nurse on her first day's work went near to a patient （病人). He has come to London as a tourist. She asked him if she could do something for him, but he only waved （摇) his hand and said something she could not understand. With a smile she asked him again and he just kept saying the same word but in a very much lower voice （声音) before closing his eyes. She ran to the doctor and repeated（重复) to him the sounds she had heard: "My dear girl," said the doctor after listening carefully to what she repeated, he was saying, " You are standing on I oxygen pipe （氧气管)!"
In the story, the nurse and the patient ______.
A．speak the same language
B．speak different languages
C．can't hear each other
