题目

如图7所示，AB为一定质量的理想气体等容过程的p-T图线，原点O处的压强p=0，温度T=0℃.现先使气体从状态A开始，经过一等温膨胀过程，体积变为原来的2倍，然后保持体积不变，缓慢加热气体，使之达到某一状态F，此时压强等于状态B的压强，试用作图方法，在所给的p-T图上，画出F的位置. 答案：【试题分析】连词成句。1. always We have a of fun at lot Christmas (.)_____________________________________________________ 2. see We go to Father sometimes Christmas (.) _____________________________________________________ 3. We put Christmas some things on pretty the tree (.) _____________________________________________________ 4. We good have all a time (.) _____________________________________________________ 5. lunch We have a big (.) _____________________________________________________