STM-N和STM-1之间是怎样的复接关系?
参考答案:
STM-N是由N个STM-1按字节间插同步复用而成的。故速率为STM-1的N倍。
当保险公司的实力较弱时,适宜通过()方式来销售保险产品。
A.保险经纪人
B.电话销售
C.网络销售
D.直销人员
用单词或短语替换划线部分的词或短语。 (共6题;每小题1分,满分6分)
注意:一格不限一词
小题1:To tell the truth, a lot of people want to be rich and famous. _______________
小题2:The endangered animals he mentioned in his lecture may become extinct any time.
________________
小题3:They completely changed the design. You have no choice but to follow the new one.
小题4:Anyhow, my goal is to supply humans with a life of high quality.
_______________
小题5:Their performances were humorous enough to be followed by other groups. __________________
小题6:It’s a great duty but also a great honor to be chosen as a volunteer for the World Expo.