[单项选择]Steven thirds that his computer system
A. is just as fast as the latest systems.
B. is much faster than Elizabeth’s present system.
C. is completely different to the newest systems.

[单项选择]Steven thirds that his computer system
A. is just as fast as the latest systems.
B. is much faster than Elizabeth’s present system.
C. is completely different to the newest systems.

[单项选择]Two-thirds of his property （） lost in the fire.
A. was
B. were
C. have been
D. are being

[单项选择]When was Apple Computer foundedHow old was Steven Jobs when he started Apple Computer
A. 21
B. 41
C. 24

[单项选择]Computer operating system software has become increasingly standardized. But when a large business with multiple, linked computer systems uses identical operating system software on all of its computers, a computer vandal who gains access to one computer automatically has access to the data on all the computers. Using a program known as a "virus," the vandal can then destroy much of the data on all the computers. If such a business introduced minor variations into its operating system software, unauthorized access to all the computers at the same time could be virtually eliminated. Furthermore, variations in operating system software can be created without any loss of computer compatibility to the business. Therefore, it is advisable for businesses to implement such variations.
Which one of the following, if true, supports the conclusion in the passage
A. Standardization of computer operating system software has increased computer compatibility among different businesses.
B. Correcting any damage resulting from an invasion by a computer virus program is more expensive than preventing the damage.
C. It is not costly for a business to maintain incompatible computer operating systems.
D. There are other kinds of destructive computer programs that do not depend on intercomputer links.
E. (E) Not all businesses need to share data among their internal computer systems.

[单项选择]Embedded system is (66) special computer system which is scalable on both software and (67). It can satisfy the strict requirement of functionality, (68) , cost, volume, and power consumption of the particular application. With rapid development of (69) design and manufacture, CPUs became cheap. Lots of (70) electronics have embedded CPU and thus became embedded systems. For example, PDAs, cellphones, point-of-sale devices, VCRs, industrial robot control, or even your toasters can be embedded system.
A. cost-oriented
B. application-oriented
C. efficiency-oriented
D. consumption-oriented

[填空题]Steven, as well as his classmates, (enjoy)（）playing football. They like this game.

[单项选择]

Inside the computer, the operation system (of another software module called a data communication (71) )must decide which program will get control next. Each program remember, is associated (72) . a particular front -end port. If a program’s data have not yet reached its front - end buffer, there is no point giving that program control. Thus the data communication monitor sends its own (73) signal to the front -end devices next port is polled. Note that the (74) computer speed. The computer never has to wait for a terminal or a communication line. Instead, it is the expressive front - end processor that waits for the slower system (75) to respond.

（73）处填（）。
A. palling
B. pulling
C. polling
D. isolate