归纳与总结是学好化学的重要方法。下列认识中,完全正确的是 [ ] A.物质名称与

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问题:

归纳与总结是学好化学的重要方法。下列认识中,完全正确的是 [ ]

A.物质名称与俗称的对应关系

①汞--水银

②二氧化碳气体--干冰

③氢氧化钠--火碱、烧碱、苛性钠

B.化学上有许多的等量关系

①ag镁和bg氧气完全反应,一定生成(a+b)g氧化铜

②100mL酒精与100mL水混合,体积等于200mL

③参加中和反应的酸和碱的质量一定相等

C.有关实验现象的记录

①硫酸铜溶液中加入氢氧化钠溶液,产生蓝色沉淀

②淀粉遇到碘水变蓝色

③红热木炭放入盛有氧气的集气瓶中,剧烈燃烧,产生白光

D.为更好的利用物质,可对物质进行分离或混合

①将纯金属制成具有特殊性能的合金

②利用蒸馏等方法从海水中提取淡水

③向煤炭中加入石灰石制成型煤,减少空气污染

考点:中和反应及在实际中的应用分子的特点化学式的写法和意义合金海水淡化
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以葡萄糖为燃料的微生物燃料电池结构示意图如图所示。关于该电池的叙述正确的是

[ ]

A.该电池能够在高温下工作

B.电池的负极反应为:C6H12O6+6H2O-24e-=6CO2↑+24H+

C.放电过程中,H+从正极区向负极区迁移

D.在电池反应中,每消耗1 mol氧气,理论上能生成标准状况下CO2气体L

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下列实验操作正确的是(  )

A.

点燃酒精灯

B.

铁丝在氧气中燃烧

C.

称量氯化钠

D.

闻气体

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甲公司2012年2月份发生以下事项:
(1)2月5日,财务部签发一张转账支票,付款人为基本存款账户开户行丙银行,该支票未填写收款人名称和出票金额,采购员刘某持该支票向A商场购买办公用品,由刘某在转账支票上补记收款人为A商场、金额为4800元后,将支票交付给A商场。A商场于2月18日持该转账支票向丙银行提示付款,被拒绝。
(2)2月20日,该公司向B厂购买一批原材料,财务部向丙银行提出申请并由其签发了一张出票金额为30万元、收款人为B厂的银行汇票。由于物价上涨等原因,该批原材料的实际结算金额为35万元,办事人员据实填写了实际结算金额,签章后将银行汇票交付给B厂。
(3)2月25日,甲公司获准从建行乙支行取得贷款50万元,财务部在建行乙支行开立了一般存款账户。2月26日,财务部从该账户转账支付3万元给c公司,用于归还所欠C公司货款。
要求:
根据上述资料,回答下列问题。

根据票据法律制度的规定,B厂向丙银行提示付款时,丙银行应当( )。

A.按出票金额30万元支付票款

B.告知B厂办事人员将实际结算金额更改为30万元后予以支付

C.向甲公司核实后,向B厂支付35万元票款,超过出票金额部分视为甲公司的贷款

D.不予受理

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足球运动员用50牛顿的力猛踢草地上的足球,足球在地面上前进了20米,足球运动对足球做的功为1000焦耳.______.

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One reason many politicians behave badly these days is that we spend less time thinking about what it means to behave well. This was less of a problem in past centuries when leaders, teachers and clergy held detailed debates over what it meant to have good character.

In the 18th century, for example, Edmund Burke composed a long, famous passage defining the standards of political excellence. In the 19th century, Anthony Trollope wrote a series of popular novels fussing over what it means to behave well in political life. Trollope’s view was different than ours. Many Americans today assume that people are born with a good Inner Self but get corrupted by politics. American voters are always looking for the Innocent Outsider who can come in and bring sweeping change.

Trollope admired Prudent Insiders, not Innocent Outsiders. His most admirable characters have been educated by long experience. They have grown mature by exercising responsibility. They have been ennobled by custom and civilization. In his books, powerless outsiders often behave self-indulgently and irresponsibly. Those who are in government have to grapple with the world as it really is.

Trollope’s ideal politicians—who have names like Plantagenet Palliser, Joshua Monk and the Duke of St. Bungay put service before independence. Their party and their country have asked them to accept certain duties and face certain problems, and they just get on with it. They are more weighty, but also more boring.

Trollope’s ideal politicians share certain traits. They are reserved, prudent and scrupulous. They immerse themselves in dull practical questions like, say, converting the currency system. They are not sweeping thinkers, but they make sensitive discriminations about the people and the circumstances around them. They learn to operate within the constraints imposed by their idiom, and they don’t whine or complain about those constraints. They develop delicate understandings of what is required in a given place in time.

Trollope’s ideal leaders are not glamorous celebrities of the sort we have come to long for since J. F. Kennedy. They are more like seamen or carpenters. They are judged by their professional craftsmanship. They are thin-skinned about any moral transgression they might commit and rigorously honest when judging themselves. They try to make things better but are acutely aware that everything they do might make things worse. Trollope’s leaders don’t embrace change quickly but have to be dragged into embracing it after much interrogation, and the change they prefer is incremental.

Trollope praises one of his prime ministers, Plantagenet Palliser, for "that exquisite combination of conservatism and progress which is his country’s present strength and her best security for the future. " Trollope’s readers would have come away from his books with a certain model for how practical people should behave, which they could either copy or argue with. I’m not sure his exemplars could thrive amid the TV politics of today, which calls for grand promises and bold colors. But there are prudent, reserved people in government even now.

Towards today’s conservative leaders, the author’s attitude is()

A. critical

B.admirable

C. suspicious

D. tolerant

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