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The FBI selected out possible traitors out of the organization.
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For centuries, explorers have risked their lives venturing into the unknown for reasons that were to varying degrees economic and nationalistic. Columbus went west to look for better trade routes to the Orient and to promote the greater glory of Spain. Lewis and Clark journeyed into the American wilderness to find out what the U.S. had acquired when it purchased Louisiana, and the Appolo astronauts rocketed to the moon in a dramatic show of technological muscle during the cold war.Although their missions blended commercial and political-military imperatives, the explorers involved all accomplished some significant science by going where no scientists had gone before.Today Mars looms (隐约出的) as humanity’s next great terra incognita (未控明之地). And with doubtful prospects for a short-term financial return, with the cold war a rapidly fading memory and amid a growing emphasis on international cooperation in large space ventures, it is clear that imperatives other than profits or nationalism will have to compel human beings to leave their tracks on the planet’s reddish surface. Could it be that science, which has long played a minor role in exploration, is at last destined to take a leading role The question naturally invites a couple of others: Are there experiments that only human could do on Mars7 Could those experiments provide in- sights profound enough to justify the expense of sending people across interplanetary space.With Mars the scientific stakes are arguably higher than they have ever been. The issue of whether life ever existed on the planet, and whether it persists to this day, has been highlighted by mounting evidence that the Red Planet once had abundant stable, liquid water and by the continuing controversy over suggestions the bacterial fossils rode to Earth on a meteorite (陨石) from Mars. A more conclusive answer about life on Mars, past or present, would give researchers invaluable data about the range of conditions under which a planet can generate the complex chemistry that leads to life. If it could be established that life arose independently on Mars and Earth, the finding would provide the first concrete clues in one of the deepest mysteries in all of science: the prevalence of life in the universe. The passage tells us that proof of life on Mars would （）
（一）某国有粮油加工企业，系增值税一般纳税人，该厂主要生产面粉、花生油等产品，该厂2005年9月份有关资料如下（该厂销售给一般纳税人的价款是不含税价，其他是含税价）：本月外购项目：（所购货物全部验收入库）（1）外购低值易耗品，取得增值税专用发票上注明价款10000元，税金1700元；（2）从农民手中收购小麦．填制主管税务机关核准使用的收购凭证上注明的收购价款为8000元；（3）从一般纳税人某粮店外购小麦一批，取得增值税专用发票上注明价款12000元；（4）从粮油供应公司（系一般纳税人）购进芝麻一批，取得增值税专用发票下注明价款为16000元；（5）从基层供销社购进黄豆一批，取得增值税专用发票上注明价款16200元，税金2106元；（6）从外地粮食部门购进花生价款18000元，专用发票上注明增值税为3060元；本月销售货物收入情况如下：（1）销售给小规模纳税人面粉，价税合计收取18000元；（2）销售给一般纳税人挂面，价款14000元；（3）销售给消费者挂面，价款3000元；（4）销售给一般纳税人豆油，价款5000元；（5）销售给一般纳税人小麦，价款6000元；（6）销售给个人切面、饺子皮、速冻饺子，价款2000元；（7）销售给个人面袋，收取价款1000元；根据上述资料回答下列问题： 该粮油加工企业本月增值税应（）元。
An old man stood outside the cinema rattling a tin and asking for money.
工程上，计算地基变形使用的压缩系数通常利用的压力间隔是( )。
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