A great many visitors come to visit the church ________ the 13^th century, which has brought large income to the local government.

A．dated from

B．dating from

C．which was dated from

D．which dated from

为了防止断面处山体滑坡，下列适合的措施是

①植树造林②修筑梯田③控制车流量④整修、加固裸露岩体[ ]

A．①④

B．②④

C．③④

D．①③