第11题: [单项选择]It is supposed that about half of the varieties of fish living in the dark depths have ______. A. evolved more than one means of creating light B. some power of illumination C. developed extremely sensitive feelers D. almost telescopic eyes 参考答案:B 答案解析:末段指出约一半以上生活在海底深处的鱼have some power of illumination,可得出答案为B项。
第16题: [多项选择]You are very selfish. It's high time you ______ that you are not the most important person in the world." Edgar said to his boss angrily. A. realized B. have realized C. realize D. should realize 参考答案:A