A. telling people apart by how they behave B. typing each other C. telling good people from bad people D. recognizing human faces 参考答案:D 答案解析:[精解] 显然问题中的gift应该理解成天赋,而不是礼物。依据文章第一段第四行“Yet a very young child,or even an animal,such as pigeon,can
第8题: [单项选择](2011)某空调器的温度设置为25℃,当室温超过25℃后,它便开始制冷,此时红色指示灯亮,并在显示屏上显示"正在制冷"字样,那么:() A. "红色指示灯亮"和"正在制冷"均是信息 B. "红色指示灯亮"和"正在制冷"均是信号 C. "红色指示灯亮"是信号,"正在制冷"是信息 D. "红色指示灯亮"是信息,"正在制冷"是信号 参考答案:C 答案解析:信息一般的是通过感官接收的关于客观事物的存在形式或变化情况。信号是消息的表现形式,是可以直接观测到的物理现象(如电、光、声、电磁波等)。通常认为"信号是信息的表现形式"。
第26题: [单项选择]Questions 11 to 18 are based on the conversation yon have just heard. A. The play is seldom delayed to start. B. The play will start twenty minutes later. C. The newspaper is seldom wrong. D. They probably have to continue to wait. 参考答案:D 答案解析:[听力原文] M:It’s already ten past eight. What time does the play start W:At eight exactly, accor