题目

 –People now can know what is happening in the world quickly.--You’re right. With the help of computers, news can ______ every corner of the world.A. get B. reach C. return D. arrive 答案：B酸奶为纯绿色食品，能健肠胃，调节人体代谢，提高人体免疫力，被越来越多的人所青睐．它的制作需要下列哪种微生物参与的？（　　） A、乳酸菌B、酵母菌C、曲霉D、放线菌