题目

下列关于生物和生物圈的叙述，错误的是（ ） A . “种瓜得瓜，种豆得豆”这句话描述了生物的遗传现象 B . 生物既受环境的影响，也能影响环境 C . 一片森林中的所有植物可以看做一个生态系统 D . 生物圈是最大的生态系统 答案：C19．听第二段材料，回答第9至11小题．9．What's Tom's problem？A．He can't sing．          B．He has no neighbors．         C．His neighbors are too noisy．10．What will Tom decide to do？A．To call the police．B．To talk with his neighbors．C．To close his windows at night．11．What might Tom be like？A．Polite．          B．Stupid．              C．Strange．