总物价水平下降，被称作( )。A．行情变化B．客场下滑C．通货紧缩D．市场萎靡

下列属于电子商务的主要好处的是()

A.提高企业的知名度

B.扩大企业销售渠道

C.允许远程管理

D.可以通过全球市场使销售量出现潜在增长，相比其他销售方式减少了交易成本

乙醇中毒的肝细胞内可出现的不甚规则玻璃样物质称为

A．Councilman小体
B．Russell小体
C．Mallorly小体
D．脂肪小体

新录用的公务员的试用期是（）。

A.三个月

B.六个月

C.一年

D.二年

For more than a decade, the prevailing view of innovation has been that little guys had the edge. Innovation bubbled up from the bottom, from upstarts and insurgents. Big companies didn’t innovate, and government got in the way. In the dominant innovation narrative, venture-backed start-up companies were cast as the nimble winners and large corporations as the sluggish losers.

There was a rich vein of business-school research supporting the notion that innovation comes most naturally from small-scale outsiders. That was the headline point that a generation of business people, venture investors and policy makers took away from Clayton M. Christensen’s 1997 classic, The Innovator’s Dilemma, which examined the process of disruptive change.

But a shift in thinking is under way, driven by altered circumstances. In the United States and abroad, the biggest economic and social challenges—and potential business opportunities—are problems in multifaceted fields like the environment, energy and health care that rely on complex systems.

Solutions won’t come from the next new gadget or clever software, though such innovations will help. Instead, they must plug into a larger network of change shaped by economics, regulation and policy. Progress, experts say, will depend on people in a wide range of disciplines, and collaboration across the public and private sectors.

"These days, more than ever, size matters in the innovation game," said John Kao, a former professor at the Harvard business school and an innovation consultant to governments and corporations. In its economic recovery package, the Obama administration is financing programs to generate innovation with technology in health care and energy. The government will spend billions to accelerate the adoption of electronic patient records to help improve care and curb costs, and billions more to spur the installation of so-called smart grids that use sensors and computerized meters to reduce electricity consumption.

In other developed nations, where energy costs are higher than in the United States, government and corporate projects to cut fuel use and reduce carbon emissions are further along. But the Obama administration is pushing environmental and energy conservation policy more in the direction of Europe and Japan. The change will bolster demand for more efficient and more environmentally friendly systems for managing commuter traffic, food distribution, electric grids and waterways.

These systems are animated by inexpensive sensors and ever-increasing computing power but also require the skills to analyze, model and optimize complex networks, factoring in things as diverse as weather patterns and human behavior. Big companies like General Electric and IBM that employ scientists in many disciplines typically have the skills and scale to tackle such projects.

The text is written to answer the question（）

A. "Does innovation belongs to the small"

B. "Why small businesses are more innovative"

C. "Are Americans more creative than Europeans and Japanese"

D. "Why is technological innovation important to today’s world"

What's the（）difference between the two parties?

A.essential

B.great

C.necessary

D.dominant