单选题 the heat to a simmer and continue to cook for another 8-10 minutes or until most of the water has evaporated.
A.Turn off B.Turn over C.Turn down D.Turn up

【正确答案】 C
【答案解析】[解析] 从所给信息可知,有空白处的前半句意思是“把火拧小到煨炖饭菜的那个点(to a simmer)”。因此,应该turn down,意为“关小”。turn off意为“关掉”;turn over意为“翻转”;turn up意为“开大”。