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问题 单项选择题

下面哪个用户不是ORACLE缺省安装后就存在的用户（）。

A.SYSDBA

B.SYSTEM

C.SCOTT

D.SYS

答案

参考答案：A

多项选择题

隧道施工现场调查事项（）。

A.隧道施工现场调查研究

B.施工单位应全面熟悉和核实文件

C.编制实施性施工组织设计

D.社会调查
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单项选择题

An analyst does research about bond evaluation. Each of the option-free bonds listed below has a par value of $1000:

Bond 1 Bond 2
Time to maturity 12 years 11 years
Annual coupon rate 6.0% 8.0%
Discount rate today 7.5% 7.5%
Which of the following statements about the two bonds is most accurate If the discount rate for each of the bonds remains at 7.5 percent for ten years, the passage of time will result in an increase in value for:

A. Bond 1 only.
B. Bond 2 only.
C. both Bond 1 and Bond 2.
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