International consultants who want to secure definite projects a

International consultants who want to secure definite projects at 【lucrative】 fees are finding it harder and harder.
A、luxurious
B、lubricative
C、penetrative
D、profitable
【正确答案】：D
【题目解析】：lucrative 意为“有利可图的”；luxurious奢侈的；lubricative润滑作用的；penetrative渗透的；profitable有利可图的；故选D。