Read and finish.读短文，按照要求完成任务
John and Sarah are good friends. John has short hair. Sarah has long hair. They have a new classroom. Look! One blackboard, one TV, two doors, many desks and chairs. The TV is big. The doors are orange. The desks are green. The TV is near the door. There are many pictures on the wall. The new classroom is very nice. They all (都)like it.
Read and judge. 判断正误。
的准线与圆
相切，则p的值为【】
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