'Qandary' (parA.6) is closest to ______.
A.dilemma
B.polemic
C.enigma
D.hoodwink

单项选择题合同法律效力的主要内容体现于： A. 合同的签订B. 合同的履行C. 合同的解除D. 合同的变更

单项选择题What does the word 'rationale' in the sentence 'many established media organizations used that decline as a rationale for deemphasizing the Web in favor of their traditional businesses' mean?