参考答案：A

解析：形近识别。deceitful欺骗的，不诚实的：You've been going there without telling me，you deceitful child!你一直在瞒着我到那地方去，你这不诚实的孩子!deceptive可能欺骗的，导致误解的：Appearances are often deceptive．外表往往是靠不住的。decisive决定性的：the decisive vote决定性的一票。deceive欺骗，行骗(动词)：He deceived her into thinking he could drive a car．他骗她，使她相信他会开汽车。