在△ABC中，∠A=12∠B=13∠C，则这个三角形是直角三角形．______（

某增值税一般纳税人销售从农业生产者处购进的自产谷物，其缴纳增值税时适用零税率。()

太平洋公司是一家有限责任制公司，赵某人董事长兼总经理，钱某任财务总监，孙某任财务部长兼出纳，另有1名财务人员李某。　　李某自20x4年从事会计工作以来，感到会计工作太琐碎，认为一辈子干会计没多大出息，所以在工作上应付差事，敷衍了事，也从未参加会计人员继续教育。为完善内部控制制度，充实财务部门的实力，20x7年公司决定聘用财务部部长孙某的同学周某担任出纳，负责办理取款、报销、日常行政工作及物品采购等工作，并将各类支票和印鉴由会计李某保管。　　按照总经理赵某的指示，财务部从20x7年开始对销售商品不要求开发票的顾客一律只开给收据，并设置了对内、对外两套账簿，对销售商品收现金且未开具发票的部分收入记入公司内部账，并以财务部长孙某个人名义存入银行。　　20x7年，公司发生了下列事项：　　(1)7月28日，由于向农名收购农副产品急需大量现金，经总经理赵某批准，从公司当日的现金收入中直接支取8万元，从财务部长孙某个人存折上取出属于公司的现金5万元，并向关联方友邦公司拆借现金5万元;　　(2)8月10日，公司业务员吴某预借现金3 000元，出纳周某为其开出借款收据，15日后吴某归还此笔借款的同时，周某退还了该收据;　　(3)10月12日，签发支票一张，填写的出票日期为“零壹拾月壹拾贰日”字样，出票大写金额为“叁万零壹佰伍拾元正”字样;　　(4)20x7年末，公司由于经营管理和市场方面对原因，经营业绩滑坡，资金方面出现问题，需向银行贷款。为了取得贷款，总经理赵某私下里找到财务部长孙某，要求其对该年度的财务数据进行调整，增加企业利润以改进公司形象。孙某带领会计李某以虚做营业额、隐瞒费用和成本开支等方法调整了公司财务数据。经过粉饰的年度财务报告经立普会计师事务所审计出具了无保留意见的审计报告。财务总监钱某认为该财务会计报告数据虚假严重，拒绝在财务会计报告上签字，最终由总经理赵某和财务部长孙某在财务会计报告上签字后，于20x8年2月份报出。　　20x8年5月，省财税部门联合对该单位进行检查时，发现该公司存在财务会计报告数据虚假、少缴税款等多项问题，拟依法进行处理。总经理赵某认为公司可以补缴税款，但财务会计报告经会计师事务所审计并出具了无保留意见的审计报告，应由立普会计师事务所对财务会计报告的真实性、完整性负责并承担由此带来的一切责任。

为该公司业务员办理还款手续时，正确的处理方法包括( )。

A．将原借款收据退还给业务员

B．将原借款收据退还给业务员并将借款收据复印件留作记帐凭证

C．不退还其原借款收据，为业务员另开收据

D．不退还其原借款收据，只退还借款收据的副本

阅读理解。

     Clothes can make phone calls, play music, dial your pal's number, keep you warm during cold

weather and operate your computer.

     This is not a fantasy. A British company, called electrotexiles, has created a wide range of

clothes-clothes tha have minds of their own ! Scientists, working for the company, have invented a kind

of fabric that can be mixed with flexible electronic materials to create intelligent clothing. The results are

electronic garments.

     If you think the weather has to be wired to different devices, think again. These designer clothes are

wirefree, soft to touch and washable! Like any electronic device, these hightech clothes have to be

powered. Currently, a tiny ninevolt battery serves the purpose. But the researchers hope that in the near

future the clothes will generate electricity by using body heat. These clothes are 100% shockproof, they

say.

     The electrotexiles team has also created the world's first cloth keyboard. These keyboard can be

sewn into your trousers or skirt. To use this device, you will have to sit down and tap on your lap! These

"laptap" devices are all set to take over laptop computers!

     Another useful garment is the shirtcummobile phone. This handy invention enables drivers to chat

comfortably with others at the wheel! Other popular electronic wears include the denim (牛仔布) jacket

with flexible earphones sewn into the hoop and the electronic ski jacket with a builtin heater. The ski

jacket is also programmed to send signals to a satellite. This technology is known as global positioning

system and can be used to track lost skiers and wandering kids.

     Having completed the cloth keyboard, scientists have already started to work on a new project-a

necktie that can be used as a computer mouse. What is the next? Do you have any idea?

1.The electronic garments are similar to other electronic devices in that ________.

A. they feel smooth and soft  

B. they use electricity as power

C. they can be washed in water  

D. they are made from flexible materials

2.How will researchers improve these hightech clothes?

A. Body heat will be used as power.

B. The wearer will not get shocked.

C. A tiny ninevolt battery will work.  

D. They will get charged automatically.

3. The main purpose of the text is_______.

A. to advertise for an English company

B. to predict the future trend of the products in the company

C. to show how rapidly science develops

D. to introduce some intelligent (智能的) clothing in the company

4. It can be inferred that the author's attitude towards the company is _______.

A. negative (消极的)  

B. casual  

C. optimistic  

D. doubtful

《易经》是阐明天理、人道之书。

计算题：一盏灯60W，每天用6h，一个月30天用了多少电？