In 1803 the United States purchased Louisiana from _____.

国际网球联合会成立于 A: 1903 B: 1803 C: 1913 D: 1923

霍尔效应哪一年发现的？ A: 1881 B: 1879 C: 1803 D: 1831

In 1803, President Jefferson negotiated the purchase of Louisiana from Mexico.

In EU, the goods are cleared through the customs based on the following rules: A: duty-free if the goods value is below 22 euros. B: VATs are levied if the goods value is below 150 euros and at or above 22 euros. C: VATs and duties are levied if the goods value is at or above 150 eruos. D: VATs and duties are levied if the goods value is at or above 170 eruos.

水的CT值范围是______ A: 22～32 B: 46～66 C: 10～20 D: 0 E: 120～150

若用户宽带密码输入错误，会出现错误代码？（） A: 651 B: 769 C: 691 D: 678

Within the EU, goods are cleared through the customs based on the following rules ____________ . A: duty-free if the goods value is below 22 euros B: VATs are levied if the goods value is below 150 euros and at or above 22 euros C: VATs and duties are levied if the goods value is at or above 150 euros D: VATs and duties are levied if the goods value is at or above 170 euros

卢浮宫是_______年向公众开放的？（ ） A: 1789 B: 1803 C: 1792 D: 1793

空想社会主义的开山之作《乌托邦》出版于() A: 1623 B: 1803 C: 1821 D: 1516