第4题:[单选题] 强油风冷变压器正常运行时,应将冷却器总台数的(____)做为“工作”冷却器。 A. 1/5~1/4 B. 1/4~1/3 C. 1/3~1/2 D. 1/2~4/5 参考答案:C
第5题: [单项选择]Which of the following is NOT a way in which salt leaves human body A. In urine. B. In sweat. C. Through kidneys. D. Through bloo 参考答案:D 答案解析:[解析] 根据原文“…it protects itself by letting less salt leave the body in urine and sweat.”“…the body ste