单项选择题
A．Complaining about the mobile phone． B．Asking about the price of the mobile phone． C．Comparing the models of the mobile phone． D．Inquiring about the functions of the mobile phone．
A．A job related to computers． B．A job related to designing． C．A job related to marketing． D．A job related to advertising．
A．Frozen foods． B．Sports goods． C．Office equipment． D．Household appliances．