第25题: [单项选择]食管癌(). A. 胸痛伴咳嗽或咯血 B. 胸痛,含硝酸甘油可缓解 C. 胸痛伴吞咽困难 D. 胸痛伴呼吸困难 E. 胸壁刺痛伴皮疹 参考答案:C
第26题:[单选题]单选题 生产性粉尘中主要常见的类型是()。 A. 动物性粉尘 B. 矿物性粉尘 C. 混合型粉尘 参考答案:C
第27题: [单项选择]Questions 26 to 28 are based on the passage you have just heard. A. Lightness of movement. B. Beautiful scenery. C. Free expression. D. Enthusiastic music. 参考答案:C 答案解析:[听力原文] What is the distinguishing feature of the modern dance performances