- 
					
Partly as a consequence of this limited time, over half of all American homes now have microwave ovens
					出自-2012年12月听力原文
				 
				- 
					
Popping food into the microwave for a couple of minutes may seem utterly harmless, but Europe's stock of these quick-cooking ovens emit as much carbon as nearly 7 million cars, a new study has found.
					2019年12月四级真题(第一套)阅读 Section C
				 
				- 
					
This is 10 times the amount this new microwave oven study estimates for annual emissions for all the microwave ovens in the EU.
					2019年12月四级真题(第一套)阅读 Section C