A. living mechanisms and their artificial imitations B. the remarkable sonar system of bats C. the deficiencies of man-made sonars D. the experiment of "blind-bats" 参考答案:B 答案解析:[分析] 本题为综合考查题。参见原文:There is no better illustration of this idea than the sonar system of bats.接下来对蝙蝠
第10题: [单项选择]由电对Zn2+/Zn与Cu2+/Cu组成钼锌原电池,298K时,若Zn2+和Cu2+的浓度分别为1 moll-1和10-8 moll-1,此时原电池的电动势比标准状态时的电动势() A. 下降0.48V B. 上升0.48V C. 下降0.24V D. 上升0.24V 参考答案:C