氮化硅是一种新合成的结构材料，它是一种超硬、耐磨、耐高温的物质。下列各组物质熔化时，所克服的粒子间的作用与氮化硅熔化所克服的粒子间的作用相同的是
| A．硝石(NaNO3)和金刚石 | B．晶体硅和水晶 |
| C．重晶石(BaSO4)和萤石(CaF2) | D．冰和干冰 |
相关试题
They use computers to keep the traffic _______ smoothly.
| A．being run | B．run | C．to run | D．running |
If you leave the club, you will not be_____back in .
| A．received | B．admitted | C．turned | D．moved |
What I need is_____ book that contains ______ABC of oil painting.
| A．a; 不填 | B．the; 不填 | C．the; an | D．a ; the |
Jenny nearly missed the flight______ doing too much shopping.
| A．as a result of | B．on top of | C．in front of | D．in need of |
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