第10题: [单项选择]Questions 23 to 25 are based on the conversation you have just heard.A. Both prefer soccer to American football. B. Both prefer American football to soccer. C. Belinda prefers soccer to American football. D. Martin prefers soccer to American football. 参考答案:C 答案解析:[解析] What do the two speakers think of American football and soccer
第15题: [单项选择]为保证氧的安全输送,根据气体流向,流量计合理的排列顺序是()。 A. 空气-笑气-氧气 B. 空气-氧气-笑气 C. 氧气-空气-笑气 D. 氧气-笑气-空气 E. 笑气-氧气-空气 参考答案:A 答案解析:为避免低氧混合气的输出,一般应将氧流量计安置在最靠近混合气体共同出口。