结合语境，填入下面横线上的句子排列顺序最恰当的一项是（ ）
云计算提供了最可靠、最安全的数据存储中心，用户不用再担心数据丢失、病毒入侵等麻烦。
①你的电脑可能会因为自己不小心而被损坏，或者被病毒攻击导致硬盘数据无法恢复，不法之徒则可能利用接触你电脑的机会窃取你的数据。
②反之，当你的文档保存在类似Google Docs的网络服务上，你就再也不用担心数据的丢失或损坏。
③很多人觉得数据只有保存在自己的电脑里才最安全，其实不然。
④因为在“云”的另一端，有全世界最先进的数据中心来帮你保存数据，有全世界最专业的团队来帮你管理信息。
⑤据报道日本核能机构电脑因为感染病毒，导致大量数据外泄。
③句提出一个错误观点，引出后文的分析，应为首句。①句“你的电脑”紧承③句中的“自己的电脑”，应为次句。⑤句列举实例，证明了①句中的“不法之徒则可能利用接触你电脑的机会窃取你的数据”，应为第三句。②中的“反之”紧承前面提到的把数据存在自己的电脑的做法，应为第四句。④为末句，是对②的解释说明。故排序为：③①⑤②④。故选B。
Dogs are the best pets of humans. They come in all sizes. Some dogs are as small as a football, and others are as tall as a desk. Dogs’ fur (毛) is different, too. It can be long and soft, or smooth and hard. People don’t mind the kind of fur, because all dogs are good to hug.
请在字典中查一下这个词。
我喜欢甜食， 你知道的。
去年， 彼得在旅途中和许多人交了朋友。
我叫托尼· 史密斯， 史密斯是我的姓。
我们在课上回答问题时应该起立
Tea and coffee are two of the most popular drinks in the world. However, people usually like one more than the other. These drinks also have very different uses.
People in the office usually sit for most of the day when they work. But this is bad for a person’s health. When people sit for too long every day, they don’t move very much. So it is easy to start getting fat. Sitting too long is also bad for their work because it makes them want to sleep. When this happens, people may make more mistakes in their work or spend more time finishing their work. Companies need workers to be healthy, so how do they fix the problem?
