我国现行税法规定，外国投资者从外商投资企业取得的税后利润，免征所得税。 ( )
参考答案：对
蓄电池并联后总电压与单个电压一样，总电流为各个蓄电池电流之（）。
A、和
B、差
C、积
D、商
Questions 11 to 18 are based on the conversation you have just heard
A．The shipping company.
B．The firm dealing with documents.
C．The travel firm.
D．The firm with a lot of people.
