A. 哈迪–温伯格平衡 B. 同地物种形成 C. 适应的辐射 D. 趋同进化 E. 不能飞行
A. incorrect replacement of barrels and plungers of jerk pumps B. overheating of the nozzle orifices C. cracked pump housings D. dirt in the fuel
A. 正确 B. 错误