--No, I have added salt to the soup, but it still isn't enough.
A:sweet
B:crispy
C:salty
D:sour
己知 {x=2y=−1 是方程kx﹣2y=3的解,则k=____.
孔子是儒家学派的创始人,他的言行被记录在( )
已知fx=x-5x≥6fx+2x<6,则f(3)为( )
有关非洲自然地理的叙述,错误的是( )