备份T2000网管数据库的作用是（）。

People all over the world celebrate Valentine’s Day．However, the holiday  1 differently in different countries  2  each culture has its own Valentine’s Day customs．
For example，people in the United States and Japan both celebrate Valentine’s Day  3February 14．But in Japan，only romantic partners come together,while in America，it can be shared by anyone  4  is close，friend or lover．Chocolate is the most preferred gift in the US  5  it is common in Japan，too．However,in the US other kinds of gifts are  6  given，and many people exchange cards．
The biggest 7  is that in Japan，only girls and women．8  chocolates to boys and men，but in the US boys and girls will give cards or small gifts to all of  9  friends．And while American men and women both receive gifts，women usually get  10  expensive gifts than men．That’s why I would like to be a man in Japan but a woman in the US!

小题1:	A．celebrates B．is celebrating C．celebrated D．is celebrated

小题2:	A．although B．where C．because D．if

小题3:	A．on B．in C．at D．by

小题4:	A．whom B．who C．whose D．which

小题5:	A．so B．as C．and D．or

小题6:	A．too B．either C．neither D．also

小题7:	A．difference B．differences C．different D．differently

小题8:	A．give B．to give C．giving D．given

小题9:	A．theirs B．they C．them D．their

小题10:

A．many B．more C．few D．fewer