[单项选择]

{{U}}Antonyms{{/U}}

When facts are ______ and data hard to come by, even scientists occasionally throw aside the professional pretense of ______ and tear into each other with shameless appeals to authority and arguments that are unabashedly ad hominem.
A. (A) elusive...objectivity
B. (B) established...courtesy
C. (C) demonstrable...neutrality
D. (D) ineluctable...cooperation
E. (E) hypothetical...scholarship

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