A、Lincoln’s democracy
B、Jacksonian democracy
C、Harrison’s democracy
D、Jeffersonian democracy
A、Lincoln’s democracy
B、Jacksonian democracy
C、Harrison’s democracy
D、Jeffersonian democracy
A、a plant with certain genes removed.
B、an organism with an artificially altered genome.
C、a hybrid organism.
D、any agricultural organism produced by breeding or biotechnology.
Across a wide variety of fields, data are being collected and accumulated at a dramatic pace. There is an urgent need for a new generation of computational theories and tools to assist humans in(1)useful information (knowledge) from the rapidly growing(2)of digital data. These theories and tools are the subject of the emerging field of knowledge discovery in database (KDD). At an abstract level, the KDD field is concerned with the development of methods and techniques for making(3)of data. The basic problem addressed by the KDD process is one of mapping low-level data (witch are typically too voluminous to understand and digest easily) into other form that might be more(4)(for example, a short report), more(5)(for example, a descriptive approximation or model of the process that generated the data), or more useful (for example, a predictive model for estimating the value of future cases), at the core ofthe process is the application
of specific data-mining methods for pattern discovery and extraction.
Ancient man attempted to change the weather by using magic. While experience taught him this was impossible, __1__he tried to forecast weather conditions. Even earlier in __2__1000 B.C.there were weather seers in Babylon----and priests clever enough to denounce as frauds those predicted __3__the weather a year in the advance. Some forecasters used __4__methods that seemed to take no connection with the actual __5__factors controlled the weather. Chickens and other animals __6__were sacrificed and their intestines poked to find signs indicating rain and drought. Somewhat more scientific were __7__predictions based on vegetation:"Onion's skin very thin ,mild weather coming in. Onion's skin thick and tough, coming weather is cold and rough." Insects and animals were also __8__favorite weather clues: "Before the glowworm lights his __9__lamp , then the air is always damp ." "If spiders their cobwebs forsake , the weather will for certain break ." "If frogs remained in pools , the weather will be fine . If they were seen on rocks, __10__rain and cold were due." It's difficult to say whether this rhyme should be taken seriously : " Hark , I hear the asses bray . Me thinks we'll have some rain today .
A、conspicuous
B、exclusive
C、cognitive
D、rigorous
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