题目内容

对地电压：电气设备的接地部分，如接地的外壳和接地体等，与（）的“地”之间的电位差。

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某人10月份营业额为8000元，规定的起征点为260元，营业税税率为5%，城建税税率为7%。计算此人当月应纳营业税税额及城建税税额。

Beads， stones， seashells， paper， precious metals such as gold and silver， base metals such as iron have all been used as money. Today， money is printed on paper. A lot of countries use their own currency， with n ames such as dollar， pound， franc， ruble， yuan and so on. Since 2002， 18 of the EU members have replaced their national currencies by Euro notes and coins. If you want to pay for something in another currency, you have to change your money into the other money. If you want to travel outside your native country, you need to change your own country's money for the money of the country you are visiting. Most large banks sell foreign currencies. You can exchange money at a bank or at an office of a tourist agency Wherever you go, exchanging money puts you in touch with international finance, which is concerned with exchange rates between different currencies. Deciding the rate for the international exchange of money is one of the most complex aspects of international banking. Euro is available in all EU member countries.

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操作电容器时应注意哪些事项？

“算账才能实行那个客观存在的价值法则。这个法则是一个伟大的学校，只有利用它，才有可能教会我们的几千万干部和几万万人民，才有可能建设我们的社会主义和共产主义。”“现在要利用商品生产、商品交换和价值法则，作为有用的工具，为社会主义服务。”联系材料，运用所学知识回答：如何评价毛泽东对社会主义制度下价值规律作用的认识？