大专专升本考试是所有的学校都行？还是只能是现在...

心电图中反映两侧心室复极化的波段是( )

A．P波
B．PR间期
C．T波
D．ST段
E．QRS波

In ancient times wealth was measured and exchanged in things that could be touched:food,tools,and precious metals and stones.Then the barter system was replaced by coins,which Still had?real value since they were pieces of rare metal.Coins were followed by fiat money,paper notes that?have value only because everyone agrees to accept them.
Today electronic monetary systems are gradually being introduced that will transform money into?even less tangible forms,reducing it to a series of"bits and bytes",or units of computerized.information,going between machines at the speed of light.′Already,electronic fund transfer allows money to be?instantly sent and received by different banks,companies,and countries?through computers and telecommunications devices.


Which of the following statements about computerized monetary systems is NOT supported by the?passage?《》（）

A.They promote international trade.
B.They allow very rapid money transfers,
C.They are still limited to small transactions(交易).
D.They are dependent on good telecommunications systems.

洋务运动时期，清政府建立的新式海军的主力是

A.福建水师
B.北洋水师
C.南洋水师
D.广东水师