单选题 43 By ______ computation, he estimated that the repairs on the house would cost him a thousand dollars.
[A] coarse [B] rude [C] crude [D] rough

【正确答案】 D
【答案解析】“粗略计算”中的“粗略”只能是rough，因此选D。句意：粗略估算下来，他预计房子的维修会花掉一千美元。