判断题

齐次线性方程组必有非零解
正确
错误

答案：错误

你可能感兴趣的试题

IAA的合成前体是；合成的主要部位是顶芽、根尖、正在发育的种子和幼叶。

答案：色氨酸

单项选择题

The code of ethics is an ________ law; it controls peoples’ thought, and is an important dependent ways that the soft law is carried out.
A、implicit
B、requisite
C、explicit
D、arrogant
E、sufficient