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【单选题】
An OSPF non-backbone area allows external routes to be flooded within the area. These externalroutes are propagated into other areas. However, external routes from other areas are not allowed to enter this area. Which type of OSPF area does this describe?（）A.
stub area
B.
transit area
C.
border area
D.
not-so-stubby area
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【简答题】下列选项中，影响胎儿正常生长发育的因素有( )。 A．孕妇的营养状况 B．孕妇的情绪状态 C．孕妇的年龄大小 D．孕妇的文化程度
【判断题】A business model is the method of doing business by which a company can sustain itself.()
A.
正确
B.
错误
【多选题】在下列民事行为中,不属于附积极延缓条件的是( )
A.
甲与乙约定：天下雨乙就租给甲一件雨衣
B.
甲与乙约定：甲的儿子考上大学，就将一间房屋租给乙
C.
甲与乙约定：若甲未调回本地，就将老家一间房屋卖给乙
D.
甲与乙约定：若乙将丙杀害，则甲将房屋一栋赠送给乙
【单选题】Which model can exactly solve the Hydrogen system? ( )
A.
Dirac equation
B.
Schrodinger equation
C.
Bohr model
D.
Rutherford model
【单选题】A model or an experiment in a science class can help us see things which would remain hidden．
A.
therefore
B.
yet
C.
otherwise
D.
still
【单选题】The latest model of camera can brings the object into focus, with which even a child can shoot very well. [ ]
A.
instantly
B.
automatically
C.
steadily
D.
randomly
【单选题】What is the problem which the model card?
A.
It is too large．
B.
It is toot hick
C.
It can’t be used in online transactions
D.
It doesn’t have a loudspeaker．
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