皮皮学，免费搜题
登录
搜题
【简答题】
将行列式化化为三角形行列式,并求其值。
拍照语音搜题，微信中搜索"皮皮学"使用
参考答案：
参考解析：
知识点：
皮皮学刷刷变学霸
举一反三
【单选题】第二节 听下面5段对话或独白。每段对话或独白后有几道小题，从题中所给的A、B、C三个选项中选出最佳选项，并标在试卷的相应位置。听每段对话或独白前，你将有5秒钟的时间阅读各个小题；听完后，各小题将给出5秒钟的作答时间。每段对话或独白读两遍。 听力原文：M: What's wrong with you, Mary? You look worried. W: I'm all right. It's al...
A.
She was scolded by her father.
B.
She is worried about her father's health.
C.
She had a quarrel with her father.
【单选题】We can see from the passage that French production ______.
A.
was insufficient to meet the needs of the French
B.
was flooding the international market
C.
was sufficient for the French consumers
D.
could keep up with long-ranged developments of people's needs
【简答题】德国人不喜欢吃（），喜爱吃土豆。
【简答题】德国人不喜欢过于（），辛辣的食品。
【单选题】It is sad to see him go but it won’t make a(n) ___ to the way we conduct our affairs.
A.
importance
B.
difference
C.
effect
D.
influence
相关题目：