单项选择题

According to the brain blood flow studies, problem solving ______.

A．increases blood flow in some areas of the brain
B．causes changes in the distribution of blood in the brain
C．demands intense concentration of blood in certain areas
D．is based on the ability to recite the time
<上一题 目录 下一题>
热门 试题

单项选择题
The author believes that ______.
A．the results obtained in the laboratory exactly reflects the real-life situations
B．the gap between the laboratory studies and real-life situations is too large to fill up
C．the gap between the laboratory studies and real-life situations eau be closed by proper reasoning
D．the difference between the laboratory studies and real-life situations will be reduced
单项选择题
When a typist gets tired, ______.
A．she has to try hard to raise her automatic
B．she can type only automatically
C．she cannot think about what she is doing
D．she can seldom type automatically
相关试题