The author seems to suggest that high divorce rate is related to ______.
A. police and fire sirens
B. noises that keep people awake at night
C. true urbanity
D. sore eyes
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在刺激变化时所产生的最小感觉差异称为( )。
A. 感受性
B. 绝对感觉阈限
C. 差别感觉阈限
D. 最小可觉差
Which of the following statements is TRUE
A. Learned and well-trained academics are now short in supply.
B. Hatred between faculty and students is now rare.
C. Younger professors are now aloof and loathsome.
D. College students now care less about their academic performanc
The largest of the racial and ethnic minorities in the U. S. is the ______.
A. Jews
B. Hispanics
C. Blacks
D. Chinese
从事第二选择的非就业活动，比如个人选择上学或从事家务等，属于( )。
A. 公开失业
B. 提前退休
C. 隐蔽性失业
D. 自然失业
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