第16题: [单项选择]This legislation is critical to sustaining the business upturn. A. crucial for B. contrary to C. objectionable for D. averse to 参考答案:A 答案解析:画线词critical to的意思是:极为重要的、决定性的,与crucial for含义相同。故正确答案为A。辨义:B.contrary to相反的;C.objectionable for讨厌的;D.