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【单选题】
Dear Mike, I am delighted to hear of your recent marriage and now send you and your wife my warmest congratulations and best wishes for a very happy married life together. I hope that when you have settled down in your new home you will bring your wife to see me, for I look forward very much to meeting her. I am sending you a small present with this letter and I hope you and your wife will find it of some use With my best wishes to you both. Your sincerely, Henry Why did Henry write this note to Mike?A.
Because Henry has recently got married.
B.
Because he wants to sent a gift to Mike.
C.
Because he likes to congratulate on Mike's marriage.
D.
Because he needs to tell Mike his new address.
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【单选题】其他干燥工艺条件不变,仅改变湿物料的粉碎程度,可知( ) 甲:物料越细碎,其平衡水分和结合水分都越小,干燥过程的推动力将越大,所需干燥的时间将越短。 乙:物料越细碎,干燥过程的临界湿含量越低,多数水分将在表面汽化阶段被除去,所以干燥的时间将越短。
A.
甲对
B.
甲乙都对
C.
乙对
D.
尚不能得到甲乙判断
【简答题】增加空气流量可以 ( ) 干燥过程的推动力, ( ) 干燥效率。
【简答题】干燥过程的传递特点及传递过程的推动力是什么?
【单选题】其他干燥工艺条件不变,进改变湿物料的粉碎程度,可知( )甲:物料越细碎,其平衡水分与结合水分都越小,干燥过程的推动力将越大,所需干燥的时间将越短。乙:物料越细碎,干燥过程的临界湿含量越低,多数水分将在表面气化阶段被除去,所以干燥时间将越短。
A.
甲对
B.
乙对
C.
甲乙都对
D.
尚不能得到甲乙判断