太阳系是我们的家园，月球围绕地球运转，我们的地球在离太阳很近的第三条轨道上运行，

张先生说他了解的养老保险模式和理财规划师所讲到的好像不是一回事，他曾经听说目前世界上养老保险的模式是：当期的缴费收人全部用于支付当期的养老金开支，不留或只留很少的储备基金。理财规划师解释说，这是从筹资模式角度对养老保险模式进行的划分。张先生所说的这种养老保险模式称为( )。

A．现收现付式

B．基金式

C．国家统筹养老保险模式

D．强制储蓄养老保险模式

下列程序段的执行结果为 ______。
Dim A(10)，B(5)
For i=1 To 10
A(i)=i
Next i
For j=1 To 5
B(j)=j*20
Next j
A(5)=B(2)
Print"A(5)="；A(5)

A．A(5)=5

B．A(5)=10

C．A(5)=20

D．A(5)=40

Both bus and tree topologies are characterized by the use of multipoint (16) ．For the bus，all stations attach，through appropriate hardware (17) known as a tap，directly to a linear transmission medium，or bus．Full-duplex operation between the station and the tap allows data to be transmitted onto the bus and received from the (18) ．A transmission from any station propagates the length of the medium in both directions and can be received by all other (19) ．At each end of the bus is a (20) ，which absorbs any signal，removing it from the bus．

A．processing

B．switching

C．routing

D．interfacing