题目

Alice, Tina and Bob are looking at the Employment section (招聘栏) of the local newspaper. Part-time WaiterBusy café needs honest and reliable waiter for weekends. Must enjoy working with a team and dealing with customers. Call Serge at 96852746 after 6 p.m.Delivery PersonYoung, fit person required to deliver heavy boxes of books. Must have a current driver’s license. We are looking for a trustworthy person for this position (职位). Call Gary at 0218906786 any time.Nanny wanted Kind, hard﹣working nanny wanted to look after three friendly children． Must be experienced and have chi9．下列各组物质能按照关系图（“→”表示反应一步完成）相互转化的是（　　）XYZACuCuOCu（OH）2BCa（OH）2Ca（NO3）2CaCl2CFe2O3FeFeSO4DNa2CO3NaOHNa2SO4A．AB．BC．CD．D