农产品经纪人的职业特点是（）
A、牵线搭桥
B、推销农产品
C、营销农产品
D、做红娘、起到联姻作用
参考答案：A, D
Professor Smith, along with his assistants, ________ on the project day and night to meet the deadline.
A．work
B．working
C．are working
D．is working
账实核对包括哪些内容？
