问题:
A、IndiGo’s order for Airbus’s new engine-option A320s was the first firm order for the updated airplanes.
B、Airbus delivered more planes than Boeing in 2006.
C、2009 saw demand for Boeing’s planes fall but not Airbus’s.
D、Airbus was able to stay ahead of Boeing in number of orders throughout the year 2010.
B、Airbus delivered more planes than Boeing in 2006.
● 参考解析