题目1A. P∧Q∧<img src="https://tihai-oss-cloud.itihey.com/img/590e30c5b1bd9597679e0be1c6cab9a5.png">PB. P∨QC. <img src="https://tihai-oss-cloud.itihey.com/img/590e30c5b1bd9597679e0be1c6cab9a5.png">P∨QD. <img src="https://tihai-oss-cloud.itihey.com/img/590e30c5b1bd9597679e0be1c6cab9a5.png">P∨P∨Q