____or not you can do this well ____ on your learning habits.
在H2、(NH4)2SO4、SiC、CO2、HF中,由极性键形成的非极性分子有 ____,由非极性键形成的非极性分子有 ____,能形成分子晶体的物质是 ____,含有氢键的晶体的化学式是 ____,属于离子晶体的是 ____,属于原子晶体的是 ____
----Peter is ________ than you, right?----Yes, but he is ________ runner in our class.