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某汽车生产企业系增值税一般纳税人,生产的小汽车不含税单价10万元/辆。2008年3月发生以下经济业务: (1)进口零配件一批,支付买价80万元,支付到达我国海关前的运输费和保险费共计 2万元,适用关税税率10%。 (2)外购生产用原材料一批,从供货方取得的增值税专用发票上注明的增值税税额为 50万元,另支付运费20万元,运输单位已开具运输发票。 (3)从小规模纳税人处购进零配件一批,增值税普通发票上注明货款20万元。 (4)直接销售给经销商70辆,并向经销商收取包装物租金1万元、运输装卸费5000元。 (5)用以旧换新方式直接向最终消费者销售汽车零配件,扣除支付旧零配件支出的款项 0.8万元后,取得销售收入6万元。 (6)本月逾期未收回的汽车包装物押金0.4万元。 (7)发生意外事故,当月外购原材料的20%发生损失。 已知汽车的消费税税率为3%。 根据以上资料,回答下列问题:

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七个国家签订了一项协议,规定每个国家在确定的具体日期采取指定的行动,每个国家的行动以其他国家同时采取的行动为条件。在完成行动之后,每个国家将通知其他六个国家。 该协议的同时行动条款忽视了这样的可能性:

A. 根据协议条件,遵从协议的日期可能有所推迟。
B. 某个国家不会被要求进行任何变化或采取任何步骤来遵守协议,尽管其他所有的国家被如此要求。
C. 每个国家都可能有一个基于协议条款的有根据的未能遵守协议的借口。
D. 协议规定某个国家开始行动标志是其他国家通知该国他们已完成行动。
E. 在某一目期后,协议中考虑的所有行动都要完成,对这一日期可做多种解释。

研究在不同环境下分别养大的同卵双胞胎的研究者发现,每一对这种双胞胎在性格上、医疗记录和生活经历上都相似。这些研究者认为这些结果证实了这种假设:遗传在决定人的性格和生活经历时比环境起更大的作用。 以下哪项,如果为真,将最严重地削弱上述假设

A. 一对在一起抚养的同卵双胞胎,经适当的测试显示出非常接近的价值观。
B. 一对不在一起抚养的同卵双胞胎,他们在攻击性和其他个人特征上明显不同。
C. 一对在一起抚养的姐弟,他们有相似的性格和生活经历。
D. 一对母女,虽然性情不同,但从事同样的职业。
E. 一对在一起抚养的双胞胎,有着相似的个性特征但有不同的价值观。

根据最近一项跨文化的研究,已婚人口通常比离婚且没有再婚的人寿命长。这一事实表明与离婚相关的压力对健康有不利影响。 下面哪个,如果正确,指出了以上论述的一处缺陷

A. 人的寿命因国家而异,即使文化相似的国家也是这样。
B. 离婚时,人们总会表现出一种压力。
C. 即使是已婚人,寿命也是随着年龄的不同而不同。
D. 许多压力都对健康有不利影响。
E. 从未结过婚的成年人的寿命比同龄的已婚人的寿命短。

Our children are disconnecting with nature. The average suburban young person has little relationship to increasingly distant wild places. By the time they are seven years old, most youngsters have been exposed to more than 20,000 advertisements. They can identify 200 corporate logos (社团理念), but they cannot identify the trees growing in their front yards. They can navigate the Web with ease, but few of them have climbed a tree and even fewer have the love of nature needed to be good stewards (庄园的管理者). How can they be good stewards if they don’’t care about trees, wildlife or wild places Trees always inspired me as a child, so when my seventh-grade science teacher asked each student to do a project, my choice was an easy one. I set out to make a leaf collection of every native tree in the Pittsburgh area. I spent countless hours hiking forests, identifying trees, pressing leaves. In the process, I developed a deeper appreciation of the richness of our forests. In many ways, that leaf collection helped launch my career in conservation (蓄林). Trees are amazing. They give meaning to the notion of "multitasking." Their shade cools us during summer. In winter, their tossing branches buffer harsh winds. They bear tasty fruits and nuts, often in extravagant abundance. They provide us with wood and paper products. All the while, trees produce oxygen, sequester (没收、吸收) carbon dioxide and help reduce global warming. They build soil and reduce water runoff and pollution. Trees even make us well when we are sick. Aspirin is derived from willows. The breast cancer-fighting compound Taxol is extracted from western yews (紫杉). Chemicals from pinko trees are widely used as memory enhancers. Though often overlooked, trees are an essential element of local beauty. They quietly define place. Imagine giant redwoods reaching skyward in a northern California coastal forest, mature ponderosary (笨重的) pines in the Rockies, stately live oaks draped with Spanish moss on a Southern plantation, massive white oaks with widely outspread branches on Midwestern farms, multicolored autumn landscapes of mixed forests in New England. What would these places be like without their unique trees In recent times, we have been taking down trees by the millions and replacing them with highways and shopping malls. Along with the loss of trees, we lose the understory (林下叶层) of native wild plants and the wildlife that they shelter. I wish every conservation-minded adult would take a moment to introduce just one child to just one tree. It’’s a small step but who knows what little actions like this can do to stimulate childhood curiosity How can we expect our children to care if you and I don’’t help them make the critical connections to nature while they are young enough to have their values shaped If you need help with tree identification, visit our resource library at enature.com. Trees give us so much and they desperately need our attention—and the attention of our children. If you want to do something for nature this season, plant a tree and while you are at it, plant a seed in the heart of a future steward. The author did many things except________ in his childhood.

A. leaf collection
B. hiking forests
C. identifying trees
D. surfing the Web

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