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He was in a complete state of（ ）and did not know what to do next.
A、bewilderment
B、barricade
C、briefcase
D、​backbone
【正确答案】：A
【题目解析】：本题考查名词词义辨析。bewilderment：迷惘，困惑；barricade：路障；briefcase：公文包，公事包；backbone：脊梁骨，脊柱。句意：他处于一个彻底困惑的状态，不知道下一步该怎么做。故A选项符合题意。