单项选择题

The study on the military school students indicated that ______.

A．life in the school was very stressful
B．disease could be caused by psychological factors
C．the good students were likely to fall ill
D．stress often made students unhappy
<上一题 目录 下一题>
热门 试题

单项选择题
The text mainly supplies information for answering which of the following questions
A．Can the immune system be affected by emotional factors
B．Why can our bodies fight the bacteria and viruses which cause diseases
C．How can the immune system be affected by emotional factors
D．Why can't blood cells in bereaved people's bodies work properly
单项选择题
Which of the following is NOT TRUE according to the passage
A．Unhappiness may cause disease.
B．Drinking alcohol may cause damage to the immune system.
C．too much sorrow is harmful to the immune system.
D．Psychological stress leads naturally to the damage of the immune system.
相关试题