【单选题】宋代皇位继承制度的优越性在于它以什么为主要皇位继承制度
【单选题】According to this passage, some people believe that eventually ______ .
A.
human societies will be much more cooperative
B.
man will live in a highly organized world
C.
machines will replace man
D.
living beings will disappear from Earth
【单选题】Some scientists believe that dolphins have a language of their own.
【简答题】反应 2O 3 →3O 2 其速率方程式若为 d (O 3 ) / dt = k (O 3 ) 2 (O 2 ) -1 或 d(O 2 )/dt = k ' (O 3 ) 2 (O 2 ) -1 ,则速率常数 k 和 k '的关系是 k = 。
【单选题】听力原文:W: I don't believe it...They say the paper may fold. M: Rumors, rumors. W: The sales have drooped again. The circulation was down to 345,000 last week. M: We're not doing too well. The Daily News...
A.
will beat its competitor.
B.
will change its layout.
【简答题】反应2O3→O2其反应速率方程式为 ,则速率常数 的关系是( )