题目

一块地有公顷，用3台拖拉机来耕，45分钟耕完，平均每台拖拉机每小时耕地多少公顷？ 答案：【答案】公顷【解析】45分=（小时）÷3÷=（公顷） Now my hometown is not at all ________ a traveler who visited it ten years ago can expect． [　　] A． that B． what C． which D． where