People often find themselves caught in such a as “whether…or not…”.
A. dilemma
B. endeavor
C. fault
D. survival
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(答案→)A. dilemma
B. endeavor
C. fault
D. survival
解析：考查词义辨析。句意：人们经常发现自己陷入一个进退两难的境地如“是还是不是”。dilemma 进退两难的，endeavor 困难，fault错误，survival幸免于。所以选A。