6月5日是世界环境日，今年我国的主题是“低碳减排，绿色生活”，下列说法或做法不符合低碳理念的是[ ]

A．纸张“双面低碳打印”技术服务于上海世博会

B．提倡骑自行车或步行的方式出行

C．在生产生活中提倡使用节能技术和节能用具

D．国家应大力发展火力发电

.After the new technique was introduced the factory produced _______cars in 1994 as the year before.

A．as twice many

B．as many twice

C．twice as many

D．twice as