— What would you like to drink, girls?

— _____, please. [ ]

A. Two cup of coffee

B. Two cup of coffees

C. Two cups of coffee

D. Two cups of coffees

滑坡的（）是山地灾害防治中首先应进行的工作，这一工作直接关系到防治工作的成败。

A、收集资料

B、访问

C、野外调查

D、资料调查