【简答题】In a six-week study, experts found people who played online s designed to improve their cognitive(认知的) skills didn't get any smarter. More than 8,600 people aged 18 to 60 were asked to play online...
【单选题】Section B Directions: There are 2 passages in this section. Each passage is followed by some questions or unfinished statements. For each of them there are four choices marked A, B, C and D. You shoul...
A.
the choice between spiritual encouragement and monetary rewards
B.
the amount of monetary rewards for students'creativity
C.
the study of relationship between actions and their consequence
D.
the effects of external rewards on students'performance