题目内容

Although his major is biology, his interest is in (apply) （）physics.

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案例分析题关系数据库设计理论主要包括3方面内容，其中起核心作用的是（）。在关系模型的完整性约束中，实体完整性规则是指关系中（）。引用完整性规则要求（）。在关系模型的完整性约束中，实体完整性规则是指关系中（）。

A. 不允许有主行
B. 属性值不允许为空
C. 主键值不允许为空
D. 外键值不允许为空

某宗土地为国有土地，某市某贸易有限公司于2004年7月1日，经该市人民政府批准，以出让方式取得该宗地国有土地使用权。批准用途为商业，出让期限为70年，出让金为1432万元。出让金已于2004年7月20日一次付清。根据地籍调查并经初步审查，该宗地实际界址清楚，土地面积与出让面积一致，为16721m2，土地使用权出让手续符合法律规定，批准文件有效。根据土地登记有关规定，建议为某市某贸易有限公司办理出让国有土地使用权登记。问题国有土地使用权出让可以采取哪些方式

咳嗽阵作，痰中带血，胸胁胀痛，烦躁易怒，口苦，舌质红，苔薄黄，脉弦数。治疗宜选

A. 泻白散合黛蛤散
B. 龙胆泻肝汤
C. 两者均是
D. 两者均非

Let’’s proceed to the main exhibit hall and look at some of the actual vehicles that have played a prominent role in speeding up mail delivery. Consider how long it used to take to send a letter across a relatively short (36). Back in the 1600’’s it took two weeks on (37)to get a letter from Boston to New York, a distance of about 260 miles. Crossing a river was also a (38). Ferry service was so (39)that a carrier would sometimes wait hours just to catch a ferry. For journeys inland, there was always the stagecoach, but the ride was by no means (40)because it had to be (41)with other passengers. The post office was pretty ingenious about some routes. In the nineteenth century, in the Southwestern desert, for instance, camels were (42)in to help get the mail through. In Alaska, reindeer were used. This practice was discontinued because of the (43)temperament of these animals. We’’ll stop here a minute so that you can enter this replica of a railway mail car. (44). In fact, the United States transported most bulk mail by train for nearly 100 years. (45). Please take a few moments to look around. I hope you’’ll enjoy your tour. And as you continue on your own, may I suggest you visit our impressive philatelic collection. (46)____.