（）是指为发挥、提高和改善旅游资源对游客的吸引力而从事的开拓性、建设性经济技术活动。

A.旅游资源开发

B.旅游业利用

C.旅游地开发

D.旅游业发展

The engine of the car went out of order and the bad weather _____ the helpless of the driver.

A．resulted in

B．added up to

C．added to

D．resulted from