(A)中国古代很早就有“驿寄梅花，鱼传尺素”之说 ， 在人类文明发展史上，(      )书简在中华文化史上的地位同样突出，一批批传世书简已成为重要典籍，记载着民族的历史与文化。人与人之间，每当有了时间和空间的距离，有了或长或短的分离，书简总能及时派上用场。古时，书简是重要通信方式，“烽火连三月，家书抵万金”。及至时下，通讯发达，人与人之间的沟通便捷，音频视频瞬间抵达，书简似不再有         。然而，疫情         ， “隔离”骤然闯入我们的生活。“隔离”状态下的亲情、友情、爱情、乡土情、家国情，来得浓烈、来得澎湃。(B)除了手机上的音频，视频，书简又一度登场 ， 共同表达情感的浓烈与澎湃。

《战“疫”书简》共5辑。所列各篇，并非         ， 而是你中有我，相互包涵。亲情中含家国之思，成长中有笃志之愿。不论信出何人，谁在阅信，都是         。每一封书简，都是一次深情的目送。每一次捧信阅读，都会感觉到身后站着很多很多的人：(C)你为这身后许许多多人的岁月静好奔赴前线，逆行战疫，他为身后许许多多人的平安健康坚守后方，深情守望。(D)一封书信，串连起前方和后方，凸显出满满的家国情怀、家国祈愿。

在甘肃敦煌莫高窟第285窟的南壁上，一个弹奏箜篌的飞天形象      ， 让无数观赏者心醉。这个精美绝伦的艺术形象蕴藏着一个有关亚洲各文明交流互鉴的美好故事：飞天弹奏的箜篌起源于6000年前的西亚地区。此后，这一来自两河流域文明的艺术瑰宝沿着丝绸之路，向东传播，逐渐流行于中亚、南亚、东亚，(     )。在亚洲的广袤大地上，循着历史的足迹溯流而上，不难发现，这样的艺术瑰宝、文化佳话       。历史上，汉唐时期中国未掌握玻璃制造技术，玻璃主要产自今天的叙利亚大马士革地区，通过丝绸之路贩卖到中国，又从中国传到日本等地。这些玻璃器皿的到来，不仅意味着是一种新型材料的交流，其造型、纹饰也吸纳提升了亚洲各国文明成果。类似的例子不胜枚举。沿着丝绸之路，来自中亚、西亚、北亚、南亚、东南亚等各地区的丰富文明成果     于中国，在此融会贯通。又通过贸易、人员交流的形式扩散到亚洲各地。中华文明崇尚包容、博采众长的开放心态也为亚洲文明这一池春水注入持久活力。如今，另一项源于中国的伟大得以延承和平合作。开放包容、互学互鉴、互利共高的丝路精神，为亚洲各国开辟了一条更加宽广通畅的“文明之路”来不少亚洲国家的文化界人士都感慨，近年来，尤其是中国提出“十带一路“倡议以来，中国和亚洲国家以及亚洲国家之间的文化共流      ， 好戏连台。

    One of the most successful singers of the twentieth century, Ella Fitzgerald has made several different styles of her own. She was born in Virginia but was brought up in an orphanage in Yonkers, New York. Chick Webb spotted her in an amateur competition when she was sixteen. He engaged her to sing with his band and when he died in 1939, she took over.

    Unlike Bessie Smith, Ella Fitzgerald taught herself the sentimental music so popular in the 1930's — songs like “My Heart Belongs to Daddy”— and her recordings became best-sellers. During the 1940's she developed her own “scat singing” — a breathless, nonsense—syllable style—for songs like “Flying Home” and “Lady Be Good.”

    Ella Fitzgerald was the perfect musical partner for her friend, the trumpeter Louis Armstrong, matching him in warmth and artistry. “I just like music, period,” she said. “To me, it's a story. There's only one thing better than singing…. It's more singing.”

    Don't let Aurora's small stature (身高) fool you — her spirit is strong. She is one of 140 chickens 1 from a farm. When we saved her, she was tiny and sick and it seemed2 that she would survive. Having never got the right 3 ， many of the chickens were sick and some 4 died.

    At a young age, Aurora and her sisters and brothers were 5 by their mom. Luckily, another mother 6their care. Aurora seemed the last to 7 food and attention. She grew at a much slower 8 than her brothers and sisters. Everything seemed 9her.

    At the young age of seven months, Aurora had lost two moms and was 10 to find a place with the other chickens.

    Aurora 11 found comfort from an old chicken named Margaret, staying under her wings during the cold nights, 12 Margaret was so old that a few months later she died. Aurora, in her own way, thinks of Margaret. Every evening, you will find her in the 13 spot where she kept Margaret company. 14 when the other chickens try to 15her away, Aurora comes back.

    As Aurora grew, we became 16 at her love to simply live. Nothing 17 her.

    So remember, when life seems so 18 that you can't take it, think of Aurora. She has lost two moms, watched her sisters and brothers die, and 19 from serious illnesses. Yet she enjoys the small, sweet 20life has offered — safety, food, warmth and good friendships.

增加:在缺词处加一个漏字符号(∧)，并在其下面写出该加的词。

删除:把多余的词用斜线(\)划掉。

修改:在错的词下划一横线，并在该词下面写出修改后的词。

注意:1）每处错误及其修改均仅限一词;

2）只允许修改10处，多者(从第11处起)不计分。

    WeChat is becoming increasing popular with people. Recently I have made a survey among my classmates about the use of WeChat. According to a result, 45% of the classmates admit they often use it because comparing with other means of communication, WeChat has more advantage. It was cheap, convenient and easy to send all kinds of messages around. Besides, 35% of they are against using it, saying it will affect their study. Not using WeChat, the rest has no opinion about it. As far as I'm concerned, since WeChat offers us great convenience, it should be made good use. We should not be slaves to it or let it to govern our minds and behaviors.

商业的本质是共赢，①好的商业模式必然要寻求盈利目标和用户感受的平衡、兼容的实现。②倘若只有商业利益没有用户权益，③无异竭泽而渔。④对于广告而言，⑤无论是宣传商品还是推荐服务，⑥抑或是传递资讯，⑦想把流量兑换为财富，⑧不仅要合乎法律，⑨更要契合普遍共识、守公序良俗。①把内置广告做成人人闹心的“牛皮癣”，显然不是上策。

任取A_n中的一个元素，记为x₁；划去x₁所在行与列，将剩下的元素按原来的位置关系组成n﹣1阶方阵A_n﹣1 ， 任取A_n﹣1中一个元素，记为x₂ ， 划去x₂所在行与列，…将最后剩下的一个元素记为x_n ， 记S_n=x₁+x₂+…+x_n ， 若n=3时，则S₃= ，若n=k时，则S_k= ．

哀江头（节选）^①

杜甫

明眸皓齿今何在？血污游魂归不得。

清渭^②东流剑阁深，去住彼此无消息。

人生有情泪沾臆，江水江花岂终极！

黄昏胡骑尘满城，欲往城南望城北。

（注释）①唐肃宗至德元年(756年)秋天，安禄山攻陷长安，第二年春，诗人沿长安城东南的曲江行走，有感而作此诗。②清渭：杨贵妃埋葬在渭水之滨。