I don't ______ his words, because he isn't worth _____.
A:trust; trusting in
B:trust in; trusting
C:trust; trusting
D:trust in; trusting in
已知a>0,函数f(x)=ax2+bx+c,向量m→=2ax0+b,x0+1与向量n→=x02+1,2ax0+b垂直时,则下列选项的命题中为假命题的是( )