题目

若的值是0，则(y–2)2019=______________. 答案：【答案】–1【解析】由算术平方根的定义解得y的值，再代入求解即可.由题意得，解得y=1，所以(y–2)2019=(1–2)2019=（-1）2019=-1故答案为：-1Cook was a strict but good captain, ______ who, unusually, took care of the sailors on his ship. [　　] A．one B．the one C．that D．this