人的呼吸实际上是在进行着____,使____进入血液,同时排出____。
在反应2A(g) + B(g)2C(g)(正反应放热)中,为了增大A的转化率,应采用的反应条件是( )
3克镁在氧气中完全燃烧,生成氧化镁的质量是( )
已知α∈π,3π2,sinα=-35,则tanα=( )
Mickey Mouse would like some water.
Donald Duck likes juice.
Snow White would like some tea.
Tutu would like some candy.
Conan likes oranges.
⑴ ____ A.
⑵ ____ B.
⑶ ____ C.
⑷ ____ D.
⑸ ____ E.