System analysis is traditionally done top-down using structured analysis based on （） ．Object-oriented analysis focuses on creation of models．The three types of the analysis model are （） ．There are two substages of object-oriented analysis． （） focuses on real-world things whose semantics the application captures．The object constructed in the requirement analysis shows the （） of the real-world system and organizes it into workable pieces． （） addresses the computer aspects ofthe application that are visible to users．The objects are those which can be expected to vary from time to time quite rapidly．
The object constructed in the requirement analysis shows the （） of the real-world system and organizes it into workable pieces．
If ambition is to be well regarded, the rewards of ambition--wealth, distinction, control over one’s destiny--must be deemed worthy of the sacrifices made on ambition’s behalf. If the tradition of ambition is to have vitality, it must be widely shared; and it especially must be highly regarded by people who are themselves ad- mired, the educated not least among them. In an odd way, however, it is the educated who have claimed to have given up on ambition as an ideal. What is odd is that they have perhaps most benefited from ambition--if not always their own then that of their parents and grandparents. There is heavy note of hypocrisy in this, a case of closing the barn door after the horses have escaped, with the educated themselves riding on them. Certainly people do not seem less interested in success and its signs now than formerly. Summer homes, European travel, BMWs--the locations, place names and name brands may change, ’but such items do not seem less in
A. customary of the educated to discard ambition in words
B. too late to check ambition once it has been let out
C. dishonest to deny ambition after the fulfillment of the goal
D. impractical for the educated to enjoy benefits from ambition
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The decrease (8) blood pressure occurred (9) race or (10) and whether or not study participants are a "typical American diet", (11) is high in saturated fats and contains few fruits and (12) or the so-called DASH (for Dietary Approaches to Stop Hypertension)diet, which emphasizes lots of fresh (13) , low-fat diary, fish and fewer sweets and which was proved in 1997 to reduce hypertension. The biggest decrease in blood pressure in this study was recorded in subjects who ate the DASH diet and reduced their sodium (14) to 1 200mg a day.
Why is this significant (15) -health experts estimate that Americans consume, on average, about 3 500 mg of sodium— (16) about 9 grams of salt — daily. It’ s not (17) we’ re that heavy-handed with the saltshaker. Most of our dietary sodium is added (18) food processing. (19) to 1 200mg, y
A. in terms of
B. regardless of
C. despite of
D. as for
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