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                                                                                                   白侯之贤
        三衢沈君持正,盛称其守白侯^①之贤。予问之曰：“侯定科繇^②如何？”曰：“豪者善避役，役多在贫人。侯察其奸，以田定赋^③，一州服其平。”“侯律己何如？”曰：“侯清约者，饮衢水外，一物不烦衢民。每旦徒行入府署，野夫不识，与争道，不问^④。”“侯驭吏何如？”曰：“吏抱案立左右，唯侯言是裁，不敢以意出入之。去年春，天子嘉之，衢人咸为侯荣。”
        予问已，顾谓二三子曰：“昔予闻兰溪吴德基言若此，今持正义盛称其贤。白侯之贤信己。”                                         选自明代宋濂《书白衢州》，有删减）
【注释】①白侯：指白景亮，字明甫，时任衢州路总管。②繇（yáo）：徭役。③赋:税。④问：问罪，责难。

世界上最大的天然橡胶生产国是（　　）

根据拼音填写汉字。
         置身其中，她的一点一滴都会让您心动：她的wǎn____ 约灵动荡漾在瘦西湖的一波碧水上；她的精巧细zhì____ 体现在莲花桥的绝美设计上，她的清新秀气洋溢在湖舟船娘的亲切笑脸上；她的cāng____ 桑沉浮刻印在宋代石塔的斑斑印迹上；她的勃勃生机àng____ 然在千年银杏的绿意正浓上……

（2015•哈尔滨）小聪测量了如图所示的滑轮组的机械效率，他先后进行了两次实验，将钩码分别匀速竖直提升h₁和h₂的高度（h₁＞h₂）．对两次实验中一些物理量进行比较，正确的是（其中s为绳子自由端通过的距离，H为动滑轮上升的高度）（　　）

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    If you have ever been left wondering why your emails are riddled(充斥着) with grammatical errors, or why you can never quite find the right phrase, it may be because you are typing with both hands.

    Our vocabulary becomes richer and our writing style becomes more fluent when we type using just one hand, scientists have found. "Typing can be too fluent or too fast, and it can actually weaken the writing process," said Srdan Medimorec, the lead author of the study conducted at the department of psychology at the University of Waterloo, Canada. "It seems that what we write is a product of the interaction(互动) between our thoughts and the tools we use to express them."

    Using text-analysis software, researchers asked 103 university students to write essays under different conditions, using one hand to type and using both hands to type. The software was used to analyze(分析) elements of the essays, such as range of vocabulary, sentence complexity and the cohesion(衔接) of the writing.

    Researchers found that participants' vocabulary became more advanced when they typed with one hand rather than two. The research team said that by slowing our writing down, typing one-handed allows more time for an internal (内在的) word search, resulting in a larger variety of words.

    In contrast, fast typists might just write the first word that comes to mind. However, it is important not to slow typing down too much. Those who typed essays one-handed in the current study slowed down to about the speed of handwriting.

    This is the first study to show that changing people's typing can make their writing get better. The researchers suggested that the speed of writing could affect writing quality regardless of the tools used, whether they are computers, or pen and paper, although further research would be required to prove that idea.