慢性腹痛常见的疾病有
A．肠结核
B．胃溃疡
C．溃疡性结肠炎
D．胆石症
E．肠梗阻
参考答案：A,B,C,E
A．E=，m=0
B．E=，m=
C．E=，m=0
D．E=，m=
三、开放作文（15分）
请根据下面提示，写一篇短文。词数不少于50。
In your English class，you are asked to describe the following picture and explain to your classmates how you understand it．
，m=0
，m=
，m=0
，m=
