填空题 Psychologists suggest that to knowing give oneself over to a behavior that has a statistical probability of shortening life is similar to attempting suicide.
A. knowing B. over C. a D. is

【正确答案】

【答案解析】A 应改为knowingly。[解析] knowingly(=consciously；intentionally)有意地；故意地：He would never knowingly do anything to hurt your interests．give oneself over to放任(自己)。