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1. While nuclear weapons present grave ________ dangers, the predominant crisis of over population is with us today. A. inevitable肯定如此的千篇一律的不可避免的 B. constant永恒的永远的 C. overwhelming占绝对多数的压倒优势的 D. potential adj潜在的n潜力 over population人口爆炸 present predominant更为可怕的是 grave严肃的严重的 answer：D 2. This is the ________ piano on which the composer created some of his greatest works. A. true B. original就考了这一次 C. real D. genuine形容人：真诚的诚实的形容物体：真实的天然的真皮real leather = genuine leather A. true和C. real在一起2个都要划掉6级考不到这么细 answer：B 3. Comparison and contrast are often used ________ in advertisements. A. intentionally故意的intention意图企图 B. pertinently直接地有关地中肯地 C. incidentally附带地偶然地 D. tiresomely疲惫的令人厌倦的 comparison and contrast对比和对照 answer：A | 
