第22题: [单项选择]Because of her dual nationality in the United States and Mexico, Maria was almost required to pay taxes in both countries until her accountant ______ with a satisfactory solution for both countries. A. intercepted B. interacted C. interpreted D. intervened 参考答案:D
第26题: [单项选择]有关DNA双螺旋结构的叙述,错误的是 A. DNA双螺旋是核酸二级结构的重要形式 B. DNA双螺旋由两条以脱氧核糖、磷酸作骨架的双链组成 C. DNA双螺旋以右手螺旋的方式围绕同一轴有规律地盘旋 D. 两股单链从5’至3’端走向在空间排列相同 E. 两碱基之间的氢键是维持双螺旋横向稳定的主要化学键 参考答案:D
第30题: [填空题]Now the problem of energy is becoming critical (关键的,紧急的), so it calls for an im mediate (solve)______. 参考答案:solution 答案解析:[考点] 词性转换 [解析] 由本题的前句可知,能源问题严重,因此需要应对方案。而后句中的空格作介词for的宾语,且空格前有“定冠词+形容词”修饰,因此要填入solve名词形式soluti