根据下面的资料，回答问题： Z公司2010年全年实现销售收入2000

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问题单项选择题

根据下面的资料，回答问题：
Z公司2010年全年实现销售收入2000万元，其中净利润200万元，该公司2010年末拥有总资产12000万元，总负债5000万元。

Z公司2010年的财务杠杆为( )。

A．0.7
B．1.4
C．1.7
D．2.4

答案

参考答案：C

解析：根据题中信息可得：公司财务杠杆=总资产/所有者权益=12000/(12000-5000)=1.7。

句型转换

同义句转换。

1. Here you can find out more about these world-famous musicians.

Here you can find out more about these musicians _____ are _____ in the world.

2. Liverpool is very important because its industry and trade played an important role in the 18th century.

Liverpool is very important _____ _____ its industry and trade in the 18th century.

3. They sleep outdoors in tents and listen to the music.

They sleep _____ _____ _____ _____ and listen to the music.

4. Tourists can take a bus tour to visit some of the places the Beatles mentioned in their songs.

Tourists can take a bus tour to visit some of the places _____ the Beatles _____ in their songs.

5. Open-air rock concerts are liked by many people.

Open-air rock concerts are_____ _____.

单项选择题

在数据库的三级模式结构中，当模式改变时，通过修改外模式/模式的映像而使外模式不变，从而不必修改应用程序，这是保证了数据与程序的( )。

A．抽象独立性

B．用户独立性

C．物理独立性

D．逻辑独立性