A-A+
In the improvement of communication which is
问题详情
In the improvement of communication, which is NOT mentioned as one of the most important inventions of the 20th century？
A．The Internet.
B．The telephone.
C．The television.
D．The telegraph.
参考答案
正确答案：D
解析：本题测试对细节内容的理解能力。根据文中的相关内容，可知telegraph应为150年前的发明，而Internet，television，telephone则属于20世纪的发明，因此正确答案为D。
