【判断题】Let the unknown number be m. The expression for "a third of the unknown number plus three" is 3x+3.
【单选题】150 不属于迎宾员服务职责的是 A 拉椅让座 B 展示菜单 C 提供第一次小毛巾 D 祝用餐愉快
【单选题】可治疗齿痛、牙关不利、颊肿、口角蜗斜等病证的输穴是
【判断题】Let the unknown number be m. The expression for "the fraction obtained when double the unknown number is divided by the sum of the unknown number and four" is .