Mr. Jackson is a teacher of science in a middle school. His students like his classes because his classes are very interesting. They can learn a lot in his class. The students can make（制作）many things. His little son Val also likes making things. He makes lots of machines（机器）, such as a machine like a man. It can do the job that is dangerous（危险的）for people to do. He says, “I want to be a scientist.”
根据短文内容，选择正确答案。

片段赏析，回答问题

你大概不止一次地看见过从地下冒出的清泉，或者在如茵的绿草旁边淌着的流水吧？你有没有注意到，当它还是涓涓细流的时候，就表现出了倔强的意志和旺盛的生命力。人们为拦住一洼泉水，曾特意挖了一个小潭，潭口围着石块，潭边长满青草，还点缀着五颜六色的野花。对于刚刚冒出地面的泉水来说，这未尝不是一个舒适的、安逸的小天地。它满可以在这里留恋徜徉，直到春花凋谢，秋草枯黄，让这些东西沉落潭底，变成渣滓，连同自己一起在于涸的冬天成为一摊烂泥。但是，不，涓滴之水，志在海洋。小水潭______不了它，小石块______不住它，小草花______不了它，打了一个转身，滑下斜坡，它唱着歌，汩汩地向前流去。

我国首先在广东省设立经济特区的原因是(      )

①毗邻港澳，与东南亚隔海相望，海陆交通便利     ②多侨乡

③矿产资源丰富                                 ④劳动力资源丰富