单项选择题

Nowadays, incoming generations really rely now on the power of the "Internet" when it comes to searching for information. Just type the word or phrase you’re looking（1）and click, there goes your answer. So why（2）wasting time turning the pages of encyclopedias if in just a snap of a finger you have what you needed People underestimate the power of encyclopedias. Well, technically, all of them are（3）sources which means, they are like the walls that can fully support your data. They are first hand accounts done by professionals and（4）.
On the other hand, Internet information I’m not saying all of them, are（5）secondary, or third hand sources（6）basically means that they have been edited or（7）.They maybe data collected from several sources and were put together. However, the problem here is the errors which the writer or the author（8）. He/she may have different under standing on the data than you,（9）you have actually seen the data. So it is like you’re just a kid listening to other’s story instead of you telling your own.（10）from that, you’re not 100% sure that the author is（11）. He/she maybe just a kid posting and posting wrong ideas for（12）.
What I would like to（13）here is that manual research is still stronger than any other. There is freedom in it, freedom to give your（14）, under standing, insights towards these first-based ideas. You also type your work（15）gathering the data so you become more（16）with it because writing is the last stage of learning since you make an output out of your（17）. Unlike the one in the Internet, some people also tend to "copy-paste" their works（18）ever reading them. So they don’t absorb（19）must be absorbed. As they say, "No Pain, No Gain", so working hard with your research will surely be a（20）and a strong one.

20（）

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