逻辑变量的取值为（ ）和（ ）。
逻辑变量的取值只有两种：“1”和“0”，这里的1和0表示的两个相互对立的逻辑状态。
Body language is the unspoken communication that goes on in every face-to-face encounter with another human being. It tells you their true feelings towards you and how well your words are being receiv
