As a salesman, he works on a______basis, taking 10% of everything he sells.
【正确答案】 B
【答案解析】本题中,B项commission“佣金”符合题意,如:Some salesmen in big shops receive a commission of 10%on everything they sell,as well as a salary.(大商店有些店员不仪有薪金,而且还可抽取所售货物10%的佣金。)其他三项revenue“税收”,salary“薪水”,pension“养老金”都不正确。