第21题: [单项选择]The ______ of a diploma to students with disabilities has a negative effect on their future educational and occupational attainment. A. refusal B. betrayal C. denial D. serial 参考答案:C 答案解析:[解析] 近形近义题。从has a negative effect来看,应该是残疾学生得不到文凭,答案选[C],denial表示拒绝给予或拒绝要求。[A]refusal表示明确果断地拒绝,甚至带有点不