题目内容
软件危机出现于60年代末，为了解决软件危机，人们提出了【 】的原理来设计软件这就是软件工程诞生的基础。
查看答案
搜索结果不匹配？点我反馈
更多问题
Which of the following is not against the laws in big cities to cross the street
In the coming decades, Europe’s influence on affairs beyond its borders will be sharply limited, and it is in other regions, not Europe, that the 21st century will be most clearly forged and defined. Certainly, one reason for NATO’s increasing marginalization stems from the behavior of its European members. With NATO, critical decisions are still made nationally; much of the talk about a common defense policy remains just that—talk. There is little specialization or coordination. Missing as well are many of the logistical and intelligence assets needed to project military force on distant battlefields. With the Cold War and the Soviet threat a distant memory, there is little political willingness, on a country-by-country basis, to provide adequate public funds to the military. Political and demographic changes within Europe, as well as the United States, also ensure that the transatlantic alliance will lose prominence. In Europe, the E.U. project still consumes the attention of many, but for others, especially those in-southern Europe facing unsustainable fiscal shortfalls, domestic economic turmoil takes precedence. No doubt, Europe’s security challenges are geographically, politically and psychologically less immediate to the population than its economic ones. Mounting financial problems and the imperative to cut deficits are sure to limit what Europeans can do militarily beyond their continent. It is true that the era in which Europe and transatlantic relations dominated U.S. foreign policy is over. No doubt, Europe’s security challenges are geographically, politically and psychologically less immediate to the population than its economic ones. Mounting financial problems and the imperative to cut deficits are sure to limit what Europeans can do militarily beyond their continent. It is true that the era in which Europe and transatlantic relations dominated U.S. foreign policy is over.
The Californian coastline north and south of Silicon Valley is a trend-setting sort of place. Increasingly, the home interiors of the well-heeled there tend toward one of two (1) . Houses are (2) light flooded, sparse and vaguely Asian in (3) , with perhaps a Zen fountain in one corner, a Yoga area in another. Or they resemble electronic control rooms with all sorts of (4) , computers, routers, antennae, screens and remote controls. Occasionally, both elements are (5) . "She" may have the living room and’public areas, (6) "he" is banished with his toys up or down the stairs.Currently, the gadget lovers have powerful allies. Many of the largest companies in the consumer-electronics, computer, telecoms and internet industries have made a strategic decision to (7) visions of a "digital home", "eHome", or "connected home". Doubting that (8) from corporate customers will ever (9) to the boom levels of the late 1990s, Microsoft, Intel, Sony, Verizon, Comcast, Hewlett-Packard, Apple and others see the consumer (10) their best chance for growth and will be throwing a bewildering (11) of home "solutions" at (12) in the coming months and years.To understand what the (13) ultimately have in (14) it is best to visit the (15) homes that most have built on their campuses or at trade shows. (16) cosy and often intimidating, these feature flat screens almost everywhere, (17) electronic picture frames in the bedroom from the large TV-substitute in the living room. Every (18) has a microchip and can be (19) to, typed into or clicked onto. Everything is (20) to a central computer through wireless links. Read the following text. Choose the best word (s) for each numbered blank and mark A, B, C or D on ANSWER SHEET 1.2（）
在关系数据库规范化理论的研究中，在函数依赖的范畴内，【 】达到了最高的规范化程度。
微信支付 
支付宝支付