According to the author, David Shenk's claim about the upgrading of living creatures ______.
A. is obviously a fault
B. is comprehensible to college students
C. is identical to his own argument
D. will be testified by his daughter
查看答案
Talking about the preference for blue eyes, the author argues that ______.
A. blue eyes are purely inherited
B. few people will have blue eyes
C. blue eyes will be less sexy
D. people with blue eyes are usually wealthy
在活动难度较大时，动机强度越强，工作效率水平（）。
A. 低
B. 高
C. 中等
D. 不变
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
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