问题
单项选择题
By ______ computation, he estimated that the repairs on the house would cost him $2,000.
A. coarse
B. rude
C. crude
D. rough
答案
参考答案：D
解析： by rough computation粗略计算；coarse粗糙的，粗鄙的；rude粗鲁的；crude天然的，未加工的，拙劣的。
