简述ERP系统的各个功能于系统的作用。

Here’s a shopping receipt(收据) of Linda.

Wenfeng Great World 146 Middle Jianjun Road Yancheng, 224001

30/01/2007 15: 17 PM Number    Item(项目)          Product#            Price 1          Pair of trousers     3597981144       ￥150.00      3          Pairs of socks       8294653379       ￥10.00/each 1          Sweater             3607889911       ￥375.00 Total                                            ￥ 555.00                                                            WELCOME NEXT TIME!

小题1:What time did Linda go shopping?

A．In the afternoon.	B．In the evening.
C．In the morning.	D．I don’t know.

小题2:How many things did Linda buy?

A．Four.

B．One.

C．Five.

D．Three.

小题3:How much money did Linda spend buying them?

A．150

B．555

C．375

D．20