[单项选择]The tone of the final paragraph can best be described as ______. A. cautiously optimistic B. overly emotional C. cleverly deceptive D. stridently contentious
A. places B. contributes C. detaches D. attaches 参考答案:D 答案解析:[考点] 动词辨析 place“安放,安置”;contribute“贡献;有助于,促成”,后接介词to;detach from 意为“拆卸;使分开,分离”;attach 后接介词to,意为“系,粘贴