— __________. I just think he is a bit annoying. That's all.
A:Really
B:Not a little
C:Not exactly
D:Not at all
已知函数y=fx的导函数y=f'x的图象如图所示,则关于函数y=fx,下列说法正确的是 ( )
为上联“心平浪静,秋月芙蕖湘水碧”选择下联,最合适的一项是( )
如图,请你写出一个能判定l1∥l2的条件:____ .