填入下面一段文字横线处的语句，最恰当的一句是（ ）有一次，有人曾向希尔伯特请教：明天最重要的技术是什么这位20世纪科学工作者界的领袖幽默地说：“到月球上去抓苍蝇。” 。希尔伯特在回答为什么时说：“因为要实现这一目标，必须解决许多连带性的技术难题，而这意味着要解决人类面临的几乎一切的物质困难。”今天，人类已经成功地登上了月球。去月发电、种庄稼，已经像“抓苍蝇”一样实实在在地摆在我们面前。

How well she sings! – Yes, she has a very beautiful ______.

The songs of Jay Chou are very popular _______ young people.

Don’t _____ women. They are as important as men for the development of society.

The policy(政策) that the Chinese government stuck to _____correct.