连接气焊胶管时,应注意颜色标志,氧气管应接()管;乙炔管应接管。
A.黄或红色/蓝或黑色
B.蓝或黑色/黄或红色
C.红或黑色/黄或蓝色
D.黄或蓝色/红或黑色
连接气焊胶管时,应注意颜色标志,氧气管应接()管;乙炔管应接管。
A.黄或红色/蓝或黑色
B.蓝或黑色/黄或红色
C.红或黑色/黄或蓝色
D.黄或蓝色/红或黑色
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