The new washing machines are ______ at the rate of fifty a day.
 
【正确答案】 C
【答案解析】 动词词组辨析。turn out此处意为“生产”,符合题意,故答案为C。turn up意为“露面,发生”;turn down意为“驳回,拒绝”;turn in意为“上缴,归还”。