【单选题】None of these ______ is an end in itself. They are tentative, experimental. They are movements not towards something definite but away from something definite.
A．assurance
B．expedients
C．awareness
D．doubts
【单选题】None of these ______ is an end in itself. They are tentative, experimental. They are movements not towards something definite but away from something definite.
A．assurance
B．expedients
C．awareness
D．doubts
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