Resource efficiency means reducing the environmental impact of the consumption and production of goods and services. The doing more with less slogan indicates the focus on more outputs with fewer impacts. Efficiency gains do not guarantee that the overall outcome stays within the ecological carrying capacity of the Earth. Influencing the demand side is therefore another prerequisite for sustainable development.
It is indeed timely to recognize that the world cannot achieve sustainable, economic growth with old fashioned consumption and production patterns. Companies will have to accelerate the trends of polluting less and of designing, producing and marketing better products and services. Consumers have to get used to the fact that environmental concerns are as important in their daily choices as considerations of price, convenience and quality. And governments and civil society have a key role to play in inspiring such a process.

[单选题]Assume that at current production and consumption levels, a product exhibit

[单选题]In reducing engine speed to an efficient propeller speed by the use of reduction gears, _______.A．speed and torque are both reducedB．speed is reduced and torque remains unchangedC．speed is reduced and torque is increasedD．speed is sometimes unchanged

[名词解释] 还原糖（reducing sugar）

[单选题]Saving or reducing expenditure in business is （） A . Save money B . Increase costC . cost planningD . cost control

[名词解释] Consumption 消费

[单选题]B．esides reducing human labor, robots can alsoA． make a few decisions for themselves.B． deal with some errors with human intervention.C． improve factory environments.D． cultivate human creativity.

[名词解释] 主要消耗（Main Consumption）

[单选题]The efficiency of turbocharge system is increased by fitting a charge air cooler （） the compressor.A . insideB . beforeC . afterD . against

[单选题]The mechanical efficiency of an engine （） because losses occur in the form of friction.A . is always less than 100%B . is always more than 100%C . is always equal to 90%D . is always less than 90%

[主观题]My eating________ (habit) are pretty good．