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【单选题】
P63.在数据库系统中,用户对客观世界中复杂失误的结构及它们之间的联系进行描述的是A.
概念数据模型
B.
逻辑数据模型
C.
物理数据模型
D.
关系数据模型
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【单选题】An example of direct finance would be when
A.
a person purchases a certificate of deposit from a bank.
B.
a person buys a life insurance policy.
C.
a person buys 100 shares of stock from a corporation.
D.
a bank makes a loan to a customer.
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【单选题】2002年9月，美国正式推出了“()”的战略，放弃了以往只有美国受到直接威胁时才使用武力的原则。
A.
遏制战略
B.
大规模报复战略
C.
先发制人
D.
新灵活反应战略
【单选题】When Robert Shiller, a Yale economist and bestselling author, told a crowd of finance professors and economics students last spring that only 10 percent of his money was invested in stocks, they gaspe...
A.
the fund's performance during the 1990s is very poor
B.
the fund lost money during the 1990s
C.
the fund did exceedingly well during the 1990s
D.
the fund's profits were not good enough
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