A:of which the meaning
B:of which meaning
C:whose of meaning
D:meaning of which
已知fx=x-5x≥6fx+2x<6,则f(3)为( )
下列对实验现象的描述,正确的是( )
要求:①说真话,抒真情;中心突出;文从字顺;条理清楚。②自选文体(诗歌除外),600字以上。③文章中不得出现真实的地名、校名、人名,否则扣分。