免责事由
参考答案：
指当事人即使违约也不承担责任的情形.分为不可抗力、免费条款和债权人过错三种类型。
A．90°，90°
B．90°，0°
C．0°，0°
D．0°，90°
开放作文。
请根据下面提示，写一篇短文。词数不少于50。
In your spoken English class, your teacher shows you the following picture. You are asked to describe
the picture and explain how you understand it.
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