If you pay a visit to Liu Hasheng's restaurant in Harbin, you will find 18 robots there. They are ready to serve you and {#blank#}1{#/blank#}sure that your dining experience is perfect. After the visit, you can tell others that robots serving customers isn't a dream any more.

    It's wonderful to see{#blank#}2{#/blank#} the 18 robots work in the restaurant. The wonder starts when you walk in. You'll see a robot come up and say, "Earth person, hello! {#blank#}3{#/blank#} to the Robot Restaurant." When you have ordered your {#blank#}4{#/blank#}, the robots in the kitchen begin to do the cooking. After the food is{#blank#}5{#/blank#}, a robot waiter will glide(滑行) out of the kitchen to serve you with the meal you've ordered. And as customers enjoy their delicious food, a robot {#blank#}6{#/blank#}lovely songs for them.

    You may ask, "Where did all these robots come{#blank#}7{#/blank#}?" Liu said they were designed(设计) and {#blank#}8{#/blank#} by the Harbin Haohai Robot Company. Liu said he invested(投资) 5 million yuan in the restaurant, with {#blank#}9{#/blank#}robot costing 200,000 yuan to 300,000 yuan. And the whole robot team is managed by the workers in the computer room.

    After a busy day, all the robots will go for a "meal", which is electricity. After 5 hours, the robots can continue their work for a day. The restaurant now provides a menu {#blank#}10{#/blank#} more than 30 dishes(菜肴), and the average(平均) cost for a dinner is about 40 to 50 yuan. Do you want to go and have a try in this restaurant?

    Next time you hold a book in your hands, stop and think. Like most other things in the modern world, it is the result of thousands of years of human invention.

    First, came the invention of writing, {#blank#}1{#/blank#}(probable) .about 5, 500 years ago. With writing, people did not have to remember everything in their heads. They could communicate with people that they never{#blank#}2{#/blank#} (see) and share their knowledge with insure generations.

Later, the Greeks were well-known for their literature (文学) and science, but their "books" looked very different {#blank#}3{#/blank#}the books of today. They were called scrolls (卷轴). They were difficult to use and took a lot of space in a library. About 2,000 years ago, books with lots of pages{#blank#}4{#/blank#} (invent).

    For more than a thousand years, the pages of books were made from animal skin. That changed in {#blank#}5{#/blank#}thirteenth century, when Europeans learned about a very {#blank#}6{#/blank#}(use) Chinese invention: paper.

But the biggest change for books in Europe came in 1439, when Johannes Gutenberg invented the printing press. Before that, books in Europe were copied by hand, so they were very expensive. Many more people could afford the books {#blank#}7{#/blank#}were produced on a printing press.

These days it is difficult {#blank#}8{#/blank#}(imagine) a world without books. But human invention does not stop. Every year, more{#blank#}9{#/blank#} (story) are bought as e-books and read on a screen.

    Will anyone turn the pages of a traditional book in the future, {#blank#}10{#/blank#}will books, like scrolls, soon disappear?