单项选择题

A．a substitute for GMATB．America's most relentless exam……

E-Rater is described as ______.

A．a substitute for GMAT
B．America's most relentless examiner
C．a machine to grade bubble-filling papers
D．a computer-grading system

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填空题∧ draw—to

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填空题evolved ∧—to

填空题In—By