主页
学科
搜索
账户
常见问题
当前学科：通信电源设备使用维护
题目：
填空题
断路器既能切断负载电流，又可切断（）。
答案：
<查看本题扣1积分>
查看答案
答案不对？请尝试站内搜索
推荐知识点:
用样本均数估计总体均数的可靠性大小时所使用的指标是（）
常用于制作冲裁模模柄的材料是（）。
风险的要素包括（）
由砂子、粘土或其他粘接剂和附加物配制而成的混合料，称之为（）。
抽象化包括哪些？
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,
关于碱洗塔蒸煮的方法，下列说法不正确的是（）。
鼻骨骨折最常见的症状是（）
金融债在我国是指（）发行的债券。
影响城市土地经济评价的因素具有不同层次，城市基础设施是属于（ ）。