下列哪项自身抗体是诊断MCTD的重要血清学依据,已列入MCTD的诊断标准()
A.抗RNA抗体
B.抗dsDNA抗体
C.抗Sm抗体
D.抗DNP抗体
E.抗UIRNP抗体
参考答案:E
1990年5月1日发行面额为1000元、票面利率10%、10年期的债券。甲银行于发行日以面额买进1000元,1995年5月1日以1550元转让给乙银行,乙银行持至2000年5月1日期满兑付。 根据上述资料,回答下列问题。
衡量债券收益的主要指标有( )。
A.回购收益率
B.票面收益率
C.当期收益率
D.到期收益率
Traditional Internet access methods like dial-up were so slow that host computers were connected to the dial-up (71) at the customer premise over slow (72) ports. PPP was designed to run directly over these serial links. But with the advent of broadband Internet (73)technologies such as ADSL and cable modems there has been a considerable increase in the bandwidth delivered to the end users. This means that the host computers at the customer premise connect to the (74) or cable "modem" over a much faster medium such as Ethernet.It also means that multiple (75) can connect to the Internet through the same connection.
74()
A.FDDI
B.HDSL
C.ADSL
D.CDMA