题目内容

关于二阶常熟微分方程的通解,下列说法正确的是

A. 一定含有两个任意常数
B. 通解包含所有解
C. 一个方程只有一个通解
D. 以上说法都不对

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更多问题

PDCA管理循环过程是( )。

A. 执行、计划、处理和检查
B. 计划、检查、处理和执行
C. 检查、处理、计划和执行
D. 计划、执行、检查和处理

Task 2 Decide whether the following statements are true (T) or false (F) according to the passage.1. Only the three essences—understanding, love and tolerance are concerned when talking about anauthentic friendship. ( )

A. 对
B. 错

Task 1 Discuss the following questions after reading the passage.1. What do you know about bungee jumping?2. What are the origin of bungee jumping and modern bungee?

2. The individual distinction may cause conflicts between us in some aspects of our life. ( )

A. 对
B. 错

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