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●试题二 阅读以下说明，回答问题，将解答写在试卷的对应栏内。 【说明】 某公司要开发一个销售管理系统，该系统的主要功能是：处理客户和销售员送来的订单；工厂是根据订货安排生产的，交出货物同时开出发票，收到客户付款后，根据发票存根进行款处理。每张订单由订单号，若干头信息和订单细节组成。一张订单可定购多种产品，工厂对大宗订货给予优惠。每种产品都规定了不同订货数量的折扣。 根据上述要求公司的销售部经理写下了以下数据表结构： 客户：(客户号，客户名，地址，电话) 订单：(订单号，客户号，产品号，订货数，订货日期，交货日期，金额) 账款：(客户号，订单号，发票号，金额，支付日期，支付金额，当前余额) 产品描述：(产品号，产品名，单价，重量) 折扣规则：(产品号，订货量，折扣) 【问题1】 上表中带下划线的为主码。请为还没有确定主码或是主码不合理的数据表选定最合适的主码。 【问题2】 上面的关系模式中还有不是第二范式的，请将其转为第二范式。并确定新数据表的主码。
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【单选题】Let us assume, for the moment, that labor is not prepared to work for a lower money-wage and that a reduction in the existing level of money-wages would lead, through strikes or otherwise, to a withdr...
A.
a fall in the value of the existing money-wage would lead to a withdrawal of labor
B.
a rise in the price of wage-goods would lead to a withdrawal of labor
C.
the demand of labor is for a rise of existing money-wage
D.
the demand of labor is for reduction in the value of real wages
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【单选题】If the price level rises by 3 percent and workers' money wage rates increase by 2 percent, then the
A.
quantity of labor demanded will decrease.
B.
quantity of labor demanded will increase.
C.
quantity of labor demanded does not change because there is no change in the real wage rate.
D.
real wage rate increases.
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【单选题】a. He doesn’t enjoy himself at parties. b. He likes going to parties. c. He is too shy to speak to strangers. d. He doesn’t know how to get along with others.
A.
a
B.
b
C.
c
D.
d
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【单选题】If at the prevailing real wage rate, the quantity of labor supplied exceeds the quantity demanded,
A.
there is a shortage of labor.
B.
the real wage rate will rise to restore equilibrium.
C.
the real wage rate is greater than the equilibrium real wage rate.
D.
None of the above answers is correct.
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【判断题】Labor wage rates appear to be a key locational determinant as supply chains become more global in nature.
A.
正确
B.
错误
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【简答题】请听句子，选择正确的答案。 (     )1. A. He is going to do it next week. B. We are going to do it this evening. C. They are going to do it after lunch. (     )2. A. They are going to take piano lessons. B. He is go...
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【判断题】The manufacturing labor budget depends on wage rates, production methods, and hiring plans.
A.
正确
B.
错误
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【单选题】When the quantity of labor demanded exceeds the quantity of labor supplied, the real wage rate
A.
rises to eliminate the labor-market shortage.
B.
falls to eliminate the labor-market surplus.
C.
rises to eliminate the labor-market surplus.
D.
falls to eliminate the labor-market shortage.
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【单选题】Labor demand is decreasing in the wage because
A.
the substitution effect is larger than the income effect.
B.
the income effect is larger than the substitution effect.
C.
the production function is concave.
D.
the marginal product of labor is increasing in labor.
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【简答题】P55_1_mp4.mp4 Who are these sentences about? Robert or Tim?Write R for Robert,and T for Tim. ( ) 1 . He doesn ’ t think he wants to become a professional football player. ( ) 2 . He would pref...
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相关题目：
【单选题】Let us assume, for the moment, that labor is not prepared to work for a lower money-wage and that a reduction in the existing level of money-wages would lead, through strikes or otherwise, to a withdr...
A.
a fall in the value of the existing money-wage would lead to a withdrawal of labor
B.
a rise in the price of wage-goods would lead to a withdrawal of labor
C.
the demand of labor is for a rise of existing money-wage
D.
the demand of labor is for reduction in the value of real wages
查看完整题目与答案
【单选题】If the price level rises by 3 percent and workers' money wage rates increase by 2 percent, then the
A.
quantity of labor demanded will decrease.
B.
quantity of labor demanded will increase.
C.
quantity of labor demanded does not change because there is no change in the real wage rate.
D.
real wage rate increases.
查看完整题目与答案
【单选题】a. He doesn’t enjoy himself at parties. b. He likes going to parties. c. He is too shy to speak to strangers. d. He doesn’t know how to get along with others.
A.
a
B.
b
C.
c
D.
d
查看完整题目与答案
【单选题】If at the prevailing real wage rate, the quantity of labor supplied exceeds the quantity demanded,
A.
there is a shortage of labor.
B.
the real wage rate will rise to restore equilibrium.
C.
the real wage rate is greater than the equilibrium real wage rate.
D.
None of the above answers is correct.
查看完整题目与答案
【判断题】Labor wage rates appear to be a key locational determinant as supply chains become more global in nature.
A.
正确
B.
错误
查看完整题目与答案
【简答题】请听句子，选择正确的答案。 (     )1. A. He is going to do it next week. B. We are going to do it this evening. C. They are going to do it after lunch. (     )2. A. They are going to take piano lessons. B. He is go...
查看完整题目与答案
【判断题】The manufacturing labor budget depends on wage rates, production methods, and hiring plans.
A.
正确
B.
错误
查看完整题目与答案
【单选题】When the quantity of labor demanded exceeds the quantity of labor supplied, the real wage rate
A.
rises to eliminate the labor-market shortage.
B.
falls to eliminate the labor-market surplus.
C.
rises to eliminate the labor-market surplus.
D.
falls to eliminate the labor-market shortage.
查看完整题目与答案
【单选题】Labor demand is decreasing in the wage because
A.
the substitution effect is larger than the income effect.
B.
the income effect is larger than the substitution effect.
C.
the production function is concave.
D.
the marginal product of labor is increasing in labor.
查看完整题目与答案
【简答题】P55_1_mp4.mp4 Who are these sentences about? Robert or Tim?Write R for Robert,and T for Tim. ( ) 1 . He doesn ’ t think he wants to become a professional football player. ( ) 2 . He would pref...
查看完整题目与答案
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