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Answer:
Examples of a secondary source are: Publications such as textbooks, magazine articles, book reviews, commentaries, encyclopedias, almanacs.
The result of creating rail standardization is that trains from different rail lines could use each other’s tracks.
<h3>What is standardization?</h3>
Standardization allows the same system across board.
It allows different train to move on same rail without restrictions this was done to ease the movement of train.
Therefore, The result of creating rail standardization is that trains from different rail lines could use each other’s tracks.
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What we can say with certainty is that Clinton served as president during the last eight years of a decade-long economic expansion that stands as the longest boom in U.S. history. Clinton saw a gain of nearly 21 million jobs during his tenure .Certainly Clinton deserves some credit for that remarkable economic growth, but just as certainly he can’t claim all the credit. How much he deserves is a matter of opinion that will probably be debated for years to come. By the time he left office, the economy was slowing rapidly, and it slipped into recession<span> in March 2001, just weeks after George W. Bush was sworn in.</span>
