题目内容
芭蕾舞起源于（）。
查看答案
搜索结果不匹配？点我反馈
更多问题
氯化物检查法中，50ml供试液中氯化物浓度(以Cl-计)应为( )。
下述一组优秀影片产生于20世纪40年代的是（）。
Amazon has given in to publisher pressure and agreed to abandon their $9.99 price point for e-Books.PuNisher Macmillan felt that the $9.99 price devalued many of its bestsellers, which often sell for $30 in hardcover format. In response to the pricing dispute, Amazon briefly removed all Macmillan books from its store last week. However, the boycott lasted only a few days before Amazon gave in to Macmillan’s demands.In a statement Sunday, Amazon defended its position to customers:Macmillan, one of the "big six" publishers, has clearly communicated to us that, regardless of our viewpoint, they are committed to switching to an agency model and charging $12.99 to $14.99 for e-Book versions of bestsellers and most hardcover releases.We have expressed our strong disagreement and the seriousness of our disagreement by temporarily ceasing the sale of all Macmillan titles. We want you to know that ultimately, however, we will have to capitulate and accept Macmillan’s terms because Macmillan has a monopoly over their own titles, and we will want to offer them to you even at prices we believe are needlessly high for e-Books.Amazon’s decision to throw in the towel may be related to Macmillan’s recent agreement to sell books in Apple’s iBookstore. Amazon has captured an overwhelming share of the e-Book market with its Kindle reader, but if the iPad becomes successful publishers may turn to Apple to sell their e-Books.Publishers seem more interested in protecting the value of their hardcover books than competing in a digital format. Will higher e-Book prices convince you to purchase a physical copy of your next novel, or will you accept a modest price increase given that e-Books are typically cheaper What can be said of the pricing dispute between Amazon and Macmillan （）
I heard a knock at the door. I peered through the peephole, and there was my father. As I opened the door, Dad began talking although he seemed strangely out of breath, "The power is out all along the northern east coast. People are saying that something went wrong at Niagara Falls. A power line must have failed."I was astounded. Power lineI was getting on the elevator, and the door wouldn’t close. I got irritated with it and finally climbed down to the lobby—all nine stories—to find out what the matter was. That was just like Dad to get angry at something that didn’t work.All of a sudden, we heard people shouting from outside. Dad opened up the window. "Wow, look out there!" Intrigued, I opened another window and looked out. The street was packed with cars whose drivers didn’t know when or where to go. Policemen filled the streets trying to mollify the pandemonium. Right across the road, workers, who had been trapped on the eleventh floor while building, attempted to cling to railing and climb down to safety. Peoples’ interrogating and raucous shouts filled the hot August air.I realized my father was speaking, "We can’t stay up here. With no power, there will be no emergency services. If the building caught on fire, we’d be trapped. Let’s go and I’I1 try to call Morn." He grabbed some cash and the cell phone. I followed him in the fatiguing trip down the stairs to the lobby. Why couldn’t we have gotten a room on the first floorI took a small couch and sat down. The stifling hotel lobby was full of people. Some were hoping to get a room; others had returned to the hotel because their flights had been canceled. Many attempted to contact family or friends on cell phones. I relaxed on the couch, noticing the only light in the room was from the few sunrays that managed to enter through the windows. Restless, Dad left to wander around Times Square. He could never sit around without being occupied.After what seemed like hours, Dad finally returned. 1 let him sit on the couch while I tried to cool down on the marble floor. The sun had set, and the room was dark, illuminated only by two small candles that tossed shadows upon the wall.I lay down on the floor and tried to nap. The surface was very hard, but it was nice and cool. I drifted off to sleep only to awaken immediately. At first this had been an exciting adventure, but now I just wished the electricity would come back on so we would be able to go back to our room. I lay there with my eyes closed, unable to sleep, listening to people nearby as they talked. I must have finally fallen asleep though, for I woke up and asked Dad what time it was."Eight. The lights are on two blocks down from us. The power should come back on pretty soon." He paused, a look of reverie on his thee, "You know, last night I was able to see the stars over Times Square. I wonder how long it’s been since somebody was able to see that.\ At the end of the passage, the author’s father seemed to（）
微信支付 
支付宝支付