单项选择题

The ______ of such I. Q. tests full of questions on American culture was not questioned at that time.

A．significance
B．validity
C．efficiency
D．justification
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单项选择题
Every year a number of students graduate from the school which will ______ new students the first week in September.
A．enroll
B．recruit
C．collect
D．reproduce
单项选择题
As the case of Amitar Ray and his family exemplifies, professional immigrants are among the most rapidly ______ first because of their occupational success and second because of the absence of strong ethnic networks that reinforce the culture of origin.
A．assimilated
B．consumed
C．accustomed
D．fascinated
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