11. No invention has received more praise and abuse than Internet.

没有一项发明像互联网一样同时受到如此多的赞扬和批评。

12. There is no denying the fact that… is an extremely serious problem: the city authorities should take strong measures to deal with it.

无可否认，……是一个极其严重的问题：城市当局应该采取有力措施来解决它。