Because the details of the project were rather hazy,we decided to reject the proposal.
A.dubious
B.unobtainable
C.lucrative
D.ambiguous

A.A.dubious
B.unobtainable
C.lucrative
D.ambiguous

【参考答案】

D
解析：这句话的意思是：由于该计划的细节非常——，我们决定拒绝这个方案。在给出的选项中，dubious“怀疑的......

(↓↓↓ 点击下方‘点击查看答案’看完整答案 ↓↓↓)