在活动难度较大时，动机强度越强，工作效率水平（）。
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The tone of this passage is mainly.
A. humorous
B. of a matter-of-fact
C. bitter and ruthless
D. emotional
班主任就学生中发生了显著变化的某个方面进行总结，这属于（）。
A. 专题总结
B. 全面总结
C. 学期总结
D. 具体总结
The main purpose of the passage is to ______.
A. give a brief introduction to the growth of the mass newspaper
B. trace the cause of the failures of the six-cent papers
C. find out which was the most significant newspaper of that time
D. show how a mass-appeal newspaper made a great fortune
Which of the following stands for the author's attitude？
A. Letting the injustice spread if we don't want to be barbarous.
B. Minimizing incidents of murder by means of death penalty.
C. Being tolerant of people's choice of not having any medical treatment.
D. Looking for a better form. of punishment than death penalty.
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