题目内容

根据双膜模型导出的结果可知总传质阻力为气膜传质阻力与液膜传质阻力之和

A. 对
B. 错

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双膜模型的要点

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Fill in the blanks with proper words given belowcorresponds, discrepancies, amendments, validity, urge1. Sometimes it is necessary to _1 the buyer to open the L/C.2. Once the seller has received the L/C, the first thing he should do is to check if it _2- with the agreement or contract.3. When _3_ or errors occur, the seller should require __4_ to be made accordingly.4. The L/C should have a time of _5____, which generally last 15 to 20 days after the time of shipment

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ANSI流明是投影仪投射在银幕上的光亮度的单位。
B. 投影机的均匀度越好，画面呈现效果越好。
C. DLP投影仪的色彩饱和度比LCD投影仪更好。
DLP投影仪的清晰度比LCD投影仪更高。