Many dog owners treat their pets like human beings, ________ if they do not have children of their own.

A．absolutely

B．especially

C．eventually

D．extremely

被誉为“绿色天堂”、“山区明珠”的是莱芜齐鲁大峡谷旅游区内的（）。

A．房干生态景区 

B．王石门“天上人家”景区 

C．黑龙潭景区 

D．独路“林海草原”景区