在光纤通信中，OTU是（）。_通信工程师综合能力_全学科试题题库

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在光纤通信中，OTU是（）。
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无纸贸易指

下列哪些操作可以进行批处理：（）

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两只电阻值均为100Ω电阻串联时，其阻值为（）。Ω。并联时阻值为（）。

Dear Sirs, RE: COUNTER-OFFER FOR MOUNTAIN BICYCLES Thank you for your letter about the offer for the captioned mountain bicycles．Although we appreciate the quality of your bicycles, their price is too high to be acceptable．Refering to the sales contract No．8998, you will find that we ordered 1000 bicycles with the same brand as per the terms and conditions stipulated in that sales contract, but the price was 15% lower than your present price．Since we placed the last order, price for raw materials has been decreased considerably．Retailing price for your bicycles here has also been reduced by 5%．Accepting your present price will mean great loss to us, let alone profit．We would like to place repeat orders with you if you could reduce your price at least by 15%．Otherwise, we have to shift to the other suppliers for our similar request. We hope you take our suggestion into serious consideration and give us your reply as soon as possible. Yours truly,

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有载调压装置的调压过程中，切换触头与选择触头的关系是（）。

煤矿防治水十六字原则是（）、（）、（）、（）。

保险业务按照承保方式可以分为()。

住院患者开具的麻醉药品和第一类精神药品处方应当逐日开具，每张处方必须为1日常用量。