A digital computer is a system composed of four distinct elements: a central process
A. hard ware
B. hard disk
C. output
D. monitor
A. hard ware
B. hard disk
C. output
D. monitor
第1题
Henry and his friend Sally are talking about online shopping.
Sally: Do you do a lot of your shopping online?
Henry: Not really. I like looking at what's available on the Internet before I actually buy it. Sometimes, I'll choose what I want in a shop, later buying it online if it's cheaper. You don't like buying things online, do you?
Sally: No. I'm a little worried about security issues. You never know who's trying to find out your codes and passwords. Aren't you worried about that?
Henry: Not really. I know that it happens, but if you buy from reputable companies with secure websites, it should be OK. Even though I use online shopping facilities, I don't think it's the best way.
Sally: I'm surprised to hear you say that. I thought you loved any digital things.
Henry: I do. I'm a big fan of using new digital products, but I don't want to sit in front of a computer screen all day. I think people need to get out and interact with other people.
Sally: So, how about coming to the department store with me? I want to see if there are any new summer clothes on sale yet.
Henry: Sure. I'd love to join you. Can we stop by the computer store? I just want to see if they have something.
Sally: Sure. While you're in the computer store, I will visit the book store opposite. I like to browse through their books if they have anything interesting.
Henry: OK. I've finished online. Let's go. I'll just get some money and my credit card.
Sally: Thanks for reminding me. I had forgotten to get mine.
1. Both of them like online shopping very much.()
2. Being cheap is one of the reasons for online shopping.()
3. Henry is a big fan of digital products, so he likes sitting in front of the computer all day.()
4. Henry will go to the department store with Sally.()
5. Both of them will visit the computer store.()
第2题
Henry and his friend Sally are talking about online shopping.
Sally: Do you do a lot of your shopping online?
Henry: Not really. I like looking at what's available on the Internet before I actually buy it. Sometimes, I'll choose what I want in a shop, later buying it online if it's cheaper. You don't like buying things online, do you?
Sally: No. I'm a little worried about security issues. You never know who's trying to find out your codes and passwords. Aren't you worried about that?
Henry: Not really. I know that it happens, but if you buy from reputable companies with secure websites, it should be OK. Even though I use online shopping facilities, I don't think it's the best way.
Sally: I'm surprised to hear you say that. I thought you loved any digital things.
Henry: I do. I'm a big fan of using new digital products, but I don't want to sit in front of a computer screen all day. I think people need to get out and interact with other people.
Sally: So, how about coming to the department store with me? I want to see if there are any new summer clothes on sale yet.
Henry: Sure. I'd love to join you. Can we stop by the computer store? I just want to see if they have something.
Sally: Sure. While you're in the computer store, I will visit the book store opposite. I like to browse through their books if they have anything interesting.
Henry: OK. I've finished online. Let's go. I'll just get some money and my credit card.
Sally: Thanks for reminding me. I had forgotten to get mine.
1. Both of them like online shopping very much.
2. Being cheap is one of the reasons for online shopping.
3. Henry is a big fan of digital products, so he likes sitting in front of the computer all day.
4. Henry will go to the department store with Sally.
5. Both of them will visit the computer store.
第5题
A.hardware
B.digital computer
C.software
D.mouse
第6题
This is a () computer, which we just bought for our research.
A、detective
B、luggage
C、digital
D、grave
第7题
Voice-(72)technology converts human speech into a digital code that a computer can under- stand.
A.converting
B.processing
C.recognition
D.disposing
第8题
第9题
第10题
Digital computer is controlled by internally stored programs and(66) of using common storage for all or part of a program and also for all or part of the data necessary for the execution of the programs; executing user-written or user-designated programs; performing user-designated manipulation of digitally represented discrete data, including.(67) operations and logic operations; and executing programs that(68) themselves during their execution.Analog computer's operations are analogous to the(69) of another system and that accepts, processes, and produces analog data.(70) computer integrates analog computer components and digital computer components by interconnection of digital-to-analog converters and analog-to-digital converters.
A.qualified
B.competent
C.capable
D.able
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