A:稳定性由强到弱的顺序排列的是:溶液、胶体、浊液
B:纳米级粒子与胶体粒子的尺寸大致相当
C:胶体属于介稳定系
D:区分胶体与溶液的方法必须用丁达尔现象
影响亚洲河流流向的主要因素是( )
⑴How can you get to the school ?____
⑵Happy birthday !____
⑶What's the weather like in summer ?____
⑷May I speak to Mike ?____
⑸Where is your aunt from ?____
A、It's cold .
B、Shenzhen .
C、Thank you .
D、Take bus No.4 .
E、Yes , speaking .
如图所示,一束复色光以入射角i从玻璃界面MN射向空气时分成a、b、c三束光,则下列说法正确的是( )