自考考试

【单选题】If you asked people what the most important invention has been,many would say the printing press.Others 1 say the wheel.But even though it’s 2 whether the appearance of the printing press affected the course of history more than the wheel，the printing press 3 within the top two or three inventions in history. 4 the telephone，the television,the radio，and the computer,the written word was the only way to 5 ideas to people too far away to talk with.Until the 6th or 7th century,all books had to be written 6.Creating a book was difficult，and very few existe
D、Therefore，very few people read books.In the 6th and 7th centuries，theChinese invented a way to print pages by 7 characters and pictures on wooden，ivory，or clay blocks.They would print a page from the block by putting 8 on the block and pressing paper onto the ink.This 9 is called letterpress printing.The invention of letterpress printing was a great advance in communication 10 each block could be inked many times and many copies of each page could be made.Many books could now be made.Therefore，many people could read the same book.
A、chalk
B．oil

C、ink

D、crystal

网考网参考答案：C
网考网解析：
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