题目

American country music is also known as country western music. It has a very long history. It comes from the folk songs of immigrants (移民) from Britain.Country music uses simple music and words to express everyday feelings such as loneliness, love and sadness. That is to say, country music describes life. It talks about friends and enemies, trucks and roads, farms and crops. People in many parts of the world like country music, because everyone can understand what the music is about.Country western music became popular first among cowboys (牛仔) from the American west countryside. Cowboy 当人处于炎热环境时，会引起（  ）                        A、冷觉感受器兴奋                     B、温觉感受器抑制   C、甲状腺激素分泌量增加               D、下丘脑体温调节中枢兴奋