A．Language and thought definitely influence each other.

B．It is impossible to understand the relationship between the two.

C．What we think certainly determines what we say.

D．What we say very probably affects what we think.

由于铁磁元件的非线性特性，电感值不是常数，回路没有固定的谐振频率。同样的回路，既可能产生谐振频率等于电源频率的基波谐振，也可能产生（）。

A.高次谐波谐振

B.纵向谐振

C.分次谐波谐振

D.横向谐振