单项选择题

Computer will become more advanced and they will also become easier to use. Improved speed recognition will make the operation of a computer easier. Virtual reality (虚拟现实), the technology of ______ with a computer using all of the human senses, will also contribute to better human and computer ______. Other, exotic (奇异的) models of computation are being developed, including biological computing that uses living organisms, molecular computing that uses molecules with particular ______, and computing that uses DNA, the basic unit of heredity (遗传) to store data and carry out operations. These are examples of possible future computational platforms that, so far, are limited in abilities or are strictly. ______. Scientists investigate them because of the physical limitations of miniaturizing circuits embedded in silicon. There are also ______ related to heat generated by even the tiniest of transistors.

A.interact
B.interacting
C.communicate
D.using
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单项选择题

There is nothing in this world constant but inconstancy. --SWIFT
Project after project designs a set of algorithms and then plunges into construction of customer-deliverable software on a schedule that demands delivery of the first thing built.
In most projects, the first system built is ______ usable. It may be too slow, too big, awkward to use, or all three. There is no ______ but to start again, smarting but smarter, and build a redesigned version in which these problems are solved. The discard and ______ may be done in one lump, or it may be done piece-by-piece. But all large-system experience shows that it will be done. Where a new system concept or new technology is used, one has to build a system to throw away, for even the best planning is not so omniscient (全知的) as to get it right the first time.
The management question, therefore, is not whether to build a pilot system and throw it away. You will do that. The only question is whether to plan in advance to build a ______, or to promise to deliver the throwaway to customers. Seen this way, the answer is much clearer. Delivering that throwaway to customers buys time, but it does so only at the ______ of agony (极大痛苦) for the user, distraction for the builders while they do the redesign, and a bad reputation for the product that the best redesign will find hard to live down.
Hence plan to throw dne away; you will, anyhow.

A.almost
B.often
C.usually
D.barely
单项选择题

There is nothing in this world constant but inconstancy. --SWIFT
Project after project designs a set of algorithms and then plunges into construction of customer-deliverable software on a schedule that demands delivery of the first thing built.
In most projects, the first system built is ______ usable. It may be too slow, too big, awkward to use, or all three. There is no ______ but to start again, smarting but smarter, and build a redesigned version in which these problems are solved. The discard and ______ may be done in one lump, or it may be done piece-by-piece. But all large-system experience shows that it will be done. Where a new system concept or new technology is used, one has to build a system to throw away, for even the best planning is not so omniscient (全知的) as to get it right the first time.
The management question, therefore, is not whether to build a pilot system and throw it away. You will do that. The only question is whether to plan in advance to build a ______, or to promise to deliver the throwaway to customers. Seen this way, the answer is much clearer. Delivering that throwaway to customers buys time, but it does so only at the ______ of agony (极大痛苦) for the user, distraction for the builders while they do the redesign, and a bad reputation for the product that the best redesign will find hard to live down.
Hence plan to throw dne away; you will, anyhow.

A.alternative
B.need
C.possibility
D.solution
单项选择题

There is nothing in this world constant but inconstancy. --SWIFT
Project after project designs a set of algorithms and then plunges into construction of customer-deliverable software on a schedule that demands delivery of the first thing built.
In most projects, the first system built is ______ usable. It may be too slow, too big, awkward to use, or all three. There is no ______ but to start again, smarting but smarter, and build a redesigned version in which these problems are solved. The discard and ______ may be done in one lump, or it may be done piece-by-piece. But all large-system experience shows that it will be done. Where a new system concept or new technology is used, one has to build a system to throw away, for even the best planning is not so omniscient (全知的) as to get it right the first time.
The management question, therefore, is not whether to build a pilot system and throw it away. You will do that. The only question is whether to plan in advance to build a ______, or to promise to deliver the throwaway to customers. Seen this way, the answer is much clearer. Delivering that throwaway to customers buys time, but it does so only at the ______ of agony (极大痛苦) for the user, distraction for the builders while they do the redesign, and a bad reputation for the product that the best redesign will find hard to live down.
Hence plan to throw dne away; you will, anyhow.

A.design
B.redesign
C.plan
D.build
单项选择题

There is nothing in this world constant but inconstancy. --SWIFT
Project after project designs a set of algorithms and then plunges into construction of customer-deliverable software on a schedule that demands delivery of the first thing built.
In most projects, the first system built is ______ usable. It may be too slow, too big, awkward to use, or all three. There is no ______ but to start again, smarting but smarter, and build a redesigned version in which these problems are solved. The discard and ______ may be done in one lump, or it may be done piece-by-piece. But all large-system experience shows that it will be done. Where a new system concept or new technology is used, one has to build a system to throw away, for even the best planning is not so omniscient (全知的) as to get it right the first time.
The management question, therefore, is not whether to build a pilot system and throw it away. You will do that. The only question is whether to plan in advance to build a ______, or to promise to deliver the throwaway to customers. Seen this way, the answer is much clearer. Delivering that throwaway to customers buys time, but it does so only at the ______ of agony (极大痛苦) for the user, distraction for the builders while they do the redesign, and a bad reputation for the product that the best redesign will find hard to live down.
Hence plan to throw dne away; you will, anyhow.

A.throwaway
B.system
C.software
D.product
单项选择题

There is nothing in this world constant but inconstancy. --SWIFT
Project after project designs a set of algorithms and then plunges into construction of customer-deliverable software on a schedule that demands delivery of the first thing built.
In most projects, the first system built is ______ usable. It may be too slow, too big, awkward to use, or all three. There is no ______ but to start again, smarting but smarter, and build a redesigned version in which these problems are solved. The discard and ______ may be done in one lump, or it may be done piece-by-piece. But all large-system experience shows that it will be done. Where a new system concept or new technology is used, one has to build a system to throw away, for even the best planning is not so omniscient (全知的) as to get it right the first time.
The management question, therefore, is not whether to build a pilot system and throw it away. You will do that. The only question is whether to plan in advance to build a ______, or to promise to deliver the throwaway to customers. Seen this way, the answer is much clearer. Delivering that throwaway to customers buys time, but it does so only at the ______ of agony (极大痛苦) for the user, distraction for the builders while they do the redesign, and a bad reputation for the product that the best redesign will find hard to live down.
Hence plan to throw dne away; you will, anyhow.

A.worth
B.value
C.cost
D.invaluable
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