—
— Yes, there is.
A:Are there any restaurants?
B:Is there a park?
C:Is it near the supermarket?
法律最主要的特征是( )
食物中所含的六类营养物质中,能为人体提供能量的一组是( )
已知x,y满足不等式组{y≤xx+y≥2x≤2,则z=2x+y的最大值除以最小值等于( )
Uncle Tom was so busy that he h____ noticed the days passed by fast.
已知函数fx=-x2+2x,x≤0lnx+1,x>0,若|fx|≥ax,则a的取值范围是( )