用于记录客户委托证券公司持有、担保证券公司因向客户融资融券所生债权的证券的账户是（）

阅读下面的文章，完成问题。

　　①随着生活水平的提高，各种各样的饮料走进了人们的生活。喝矿泉水、纯净水已是普遍现象。喝雪碧、可乐成了一种时尚，各种名目繁多的功能饮料更是赢得了青少年的青昧，而饮用白开水的人却越来越少。其实，从科学角度来看，任何其他的饮料都无法取代白开水。 

　　②众所周知，水是维持人体正常生理活动所必需的物质，只有保证机体有足够的水分，体内产生的废物才能及时地通过肾脏排出体外。从医学角度上讲，任何饮料都不如白开水对生理健康有价值。白开水最容易解渴，有调节体温、输送养分及清洁身体内部的功能。而且，白开水具有较强的生物活性。对于促进细胞新陈代谢、能量转换、血液循环和维持电解质平衡，都大有益处。白开水不含卡路里，在进入人体后，很容易透过细胞膜，增加血液中血红蛋白含量，增强人体自身免疫功能，提高机体抗病能力。因此，白开水实在是人体最需要的天然“饮料”。  

　　③白开水是由自来水煮沸而来的，其主要成分是水，其中还包含多种矿物质和一些人体需要量极少的微量元素。如钠、钾、钙、镁、锌、铁、铜、铅、氟、碘和硒等。矿物质和微量元素是人体必需的营养素，不能缺乏，但也不能过多。自来水所含的矿物质为矿泉水的1/10, 又是纯净水的10 倍。矿泉水的矿化度一般为200-300 毫升/ 升，自来水为20-30 毫升/ 升，而纯净水只有2-3 毫升/ 升。有关研究表明，自来水中的矿物质和微量元素的含量对人体来说是最适宜的。  

　　④其他的饮料所含糖分和热量一般都偏高，食欲旺盛且过量饮用的人，往往会因糖分和热量摄入过多引起肥胖，食欲不振的人则由于饮料影响正餐，可能导致热量摄入不足而渐趋瘦弱。饮料中的果糖会阻止人体对铜的吸收，引起贫血等病症。饮料中的人工色素、防腐剂在体内蓄积，会干扰多种酶的功能，引起消化不良。再者，饮料中的大量电解质不容易很快从胃肠排空，而是较长时间存在于胃肠内，影响消化吸收，降低食欲，同时还加重了肾脏的负担。另外，通过蒸馏和逆渗透技术加以净化后的纯净水会失去如镁、锌、铁、硒、碘等对人体有益的矿物质，长期饮用纯净水，人体便会缺少某些必要的元素而造成营养失衡，这对处于生长期的青少年来说尤为不利。

　　⑤那么，如何科学地饮用白开水呢? 首先要注意喝水时间。饭前饭后半小时和餐中都不宜大量饮水，以免冲淡唾液、胃液，导致消化不良；最好在两顿饭中间适量饮用。其次要掌握喝水的量。成人每天需500 ～3000 毫升，要一次性将一整杯水喝完，这样有利于身体真正吸收；最好每隔l ～2 小时喝一杯，不要等到有口渴感觉时才饮水。再者要喝新鲜开水。饮用水储存时间不宜过长，否则其中的亚硝酸盐含量就会上升，可转换为有致癌作用的亚硝胺。将水加热到100 ℃并持续沸腾3 分钟，等降温到30 ℃以下后最适合安全饮用。而生水、不开的水、重新煮开的水、千滚水( 反复煮沸的水) 、蒸锅水( 蒸馒头等的剩锅水) 和老化水( 长时间贮存不动的水) 等，是绝对不可饮用的。

1．为什么说白开水是生活中的最佳饮料?

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2．请说说第③段中画线句子用了哪几种说明方法并分析其作用。

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3．分析下面句中加粗字的表达效果。

从医学角度上讲，任何饮料都不如白开水对生理健康有价值。

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4．根据对阅读内容的理解，说说应该如何正确科学地饮用白开水？

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5．请拟写一则倡导喝白开水的公益广告语。

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IV 阅读理解(每小题2分，共24分)                 

I travel a lot in my work, and what I dislike about my job is eating alone. It always makes me feel lonely to see others laughing and talking. So, room service for several nights was a better choice for me.

After having room service three nights at a hotel in Houston, however, I needed to get out of my room. Although the restaurant opened at 6:30, I arrived at 6:25. The waiter at the front desk made a comment about my “being there really early”. I explained my dislike of eating alone in restaurants. He then seated me at a lovely table and asked me whether I would mind if he sat down with me for a while.

I was glad! He sat and talked with me about his career goals and the difficulty of being at work on nights, weekends and holidays. He said he hadn’t enough time to be with his family. After 15 minutes, he saw some customers at the front desk and excused himself. I noticed that before he went to the front desk, he stopped in the kitchen for a moment.  

Then another waiter came out of the kitchen and had a wonderful chat with me. Before I left that night, some other waiters, even the cook, had come out of the kitchen and sat with me!

When I asked for my bill about one hour later, all the people who had sat down with me came over in a big group to my table, and presented me with a red rose. And I cried! What had begun as a lonely night ended as a beautiful experience.

57. The reason why the author hated to eat in the hotel restaurant is that the author didn’t like ______.

A. meeting strangers in the restaurant

B. being disturbed by the noises around

C. the discomfort caused by eating alone

D. being pointed at or laughed at

58. How did the waiter feel when he saw the author come in at 6:25?

A. Dissatisfied.           B. Pleased.     C. Surprised.       D. Angry.

59. From the third paragraph, we can learn that the waiter at the front desk ______.

A. knew how to attract more customers to his restaurant

B. found it hard to balance his work and his family

C. was getting tired of his present job

D. had never had such a chance to talk about his worries

60. The author wants to tell us that ______. 

A. people can get help for their loneliness

B. restaurants should put the need of customers first 

C. the kindness of strangers can make you less lonely

D. restaurants are full of surprises

各类建筑±0.00以上墙体禁止使用粘土实心砖作为砌体。

下列说法错误的一项是：

A．《扁鹊见蔡桓公》、《愚公移山》、《桃花源记》的作者，分别是战国时代的韩非、战国时代的列子和晋代的陶渊明

B．《曹刿论战》选自《左传》，作者相传是春秋时期的左丘明；《陈涉世家》选自《史记》，作者是汉代的史学家和文学家司马迁

C．《陋室铭》、《马说》、《醉翁亭记》的作者刘禹锡、韩愈、欧阳修，他们都是唐代著名的作家

D．《君子于役》选自《诗经》，《诗经》是我国第一部诗歌总集，分为“风”、“雅”、“颂”三部分

萃取分离法的缺点是（）。

A.简单

B.萃取剂常是易挥发的

C.萃取剂常是易燃.有毒的

D.手工操作工作量较大