第12题:[单选题] 1.2.9-22 题型:2 难度:5 一致性:5 [题目] 已知某湿料干基含水量为0.3Kg水/Kg干料在与温度为25℃相对湿度为50%的空气接触,此时查得物料的平衡水分为0.085Kg水/Kg干料则自由水分=( ) Kg水/Kg干料。 A. 0.215 B. 0.385 C. 0.615 D. 0.685 参考答案:A
第19题: [单项选择]A: My telephone doesn’t seem to be working. And I have lots of calls that I have to return this evening. B:( ). A. What a terrible day you have! B. Do you find someone to take care it for you C. My telephone works very well. D. Feel free to use mine if you want. 参考答案:D 答案解析: