【简答题】某检验员要测定某种面粉的水分含量,用干燥恒重为24.3608g的称量瓶称取样品2.8720g,置于100°C的恒温箱中干燥3小时后,置于干燥器内冷却称重为27.0328g;重新置于100°C的恒温箱中干燥2小时,完毕后取出置于干燥器冷却后称重为26.9430g;再置于100°C的恒温箱中干燥2小时,完毕后取出置于干燥器冷却后称重为26.9422g。问被测定的面粉水分含量为多少?(其中恒重要求<2m...< /div>
【简答题】Make one sentence from two. Use the words in brackets. 1. I couldn’t sleep. I was tired. (despite) 2. They have very little money. They are happy. (in spite of) 3. My foot was injured. I managed to wa...
【简答题】The following paragraph lack coherence. Please change the order of sentences to make them coherent. 每个空填相应的数字即可 1. I had a terrible morning today. .2 In the middle of a class, I discovered I had le...
【简答题】Translate the following sentences into Chinese, paying special attention to the underlined expressions. (10*10) 1. I buried my head under the miserable sheet and rug , and cried like a child. 2. He pa...
【简答题】某检验员要测定某种面粉的水分含量,用干燥恒重为 24.3608g 的称量瓶称取样品 2.8720g ,置于 100°C 的恒温箱中干燥 3 小时后,置于干燥器内冷却称重为 27.0328g ; 重新置于 100°C 的恒温箱中干燥 2 小时 , 完毕后取出置于干燥器冷却后称重为 26.9430g ;再置于 100°C 的恒温箱中干燥 2 小时,完毕后取出置于干燥器冷却后称重为 26.9422g 。...