Living in a highly society，you definitely have to arm yourself with modern technology and skills．
A. petitive
B. fierce
C. attractive
D. sensitive
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(答案→)A. petitive
B. fierce
C. attractive
D. sensitive
解析：形容词辨析。A竞争性的 具有竞争力的；B凶猛的;残酷的;好斗的；C有吸引力的；D敏感的。句意：生活在一个高度竞争的社会里，你一定要用现代化的技术和技巧武装你自己。