16世纪中叶,随着资本主义经济的发展,所有权和经营权相分离的生产经营方式——股份公司的涌现,使股票、公司债券及不动产抵押债券依次进入有价证券交易的行列。()
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A上颌第一磨牙
B上颌第二磨牙
C下颌第一磨牙
D下颌第二磨牙
E上颌中切牙
牙冠的相对颊霸膜上是腮腺的为
国际标准化组织的OSI基本参考模型共有7层。IP、TCP分别是对应于该模型中(1)、(2)的协议。在因特网协议组中,与TCP在同一层的协议还有(3)。
A. 网络层
B. 传输层
C. 会话层
D. 媒体访问控制层
听力原文:M: Bob is certainly the funniest person in class; he can always make everyone laugh.
W: I think I still have to get used to his sense of humor.
Q: What does the woman mean?
(7)
A. She must learn to understand Bob's humor better.
B. She enjoys Bob's humor a great deal.
C. She thinks Bob is not funny enough.
D. She doesn't appreciate Bob's humor.