电子防滑控制系统的发展从控制模式上划分大致经历了（）代。
参考答案：三
George Orwell, ______ was Eric Arthur, wrote many political novels and essays. [ ]
A. the real name
B. what his real name
C. his real name
D. whose real name
我们在坐车或乘飞机时，看到外面的美丽风景，第一个念头应该是什么？为什么要这样做？
