理想气体实际上是一种科学的抽象，客观上并不存在（）

理想气体是理论上假想的一种把实际气体性质加以简化的气体。人们把假想的，在任何情况下都严格遵守气体三定律的气体称为理想气体。就是说：一切实际气体并不严格遵循这些定律，只有在温度较高，压强不大时，偏离才不显著。所以一般可认为温度不低于0℃，压强不高于1.01×105Pa时的气体为理想气体。An ideal gas is a theoretical hypothetical gas which simplifies the properties of an actual gas. A hypothetical gas that strictly obeys the three laws of gas in all circumstances is called an ideal gas. That is to say, all real gases do not strictly follow these laws, and only at high temperatures and low pressures does the deviation become insignificant. Therefore, it can be generally regarded as an ideal gas when the temperature is not lower than 0℃ and the pressure is not higher than 1.01×105Pa.

此题为判断题(对，错)。

B．占微小体积的质点.分子之间没有作用力

C．占微小体积的质点.分子之间有微弱作用力

D．不占体积的质点.分子之间有微弱作用力

A、没有粘性

B、把空气分子看成没有体积的质点

C、没有温度

D、没有压力

什么是理想气体？什么是实际气体？