一.填空题,请选择一个单词或词组填入下列句子中 advantage shift commission disadvantage obvious apply overtime by the way publicity balance Lisa will be late. She is working _____________ tonight.
【简答题】A.When a patient is at an old age. B.When a patient is very young. C.When a person doesn't take foods containing vitamins. D.When a patient stops vitamins injections.