Who is sleeping at home?
A:Tom's brother.
B:Tom's father.
C:Tom's mother.
已知函数f(x)=ax+xlnx(a∈R)
(1)若函数f(x)在区间e,+∞)上为增函数,求a的取值范围;
(2)当a=1且k∈z时,不等式k(x﹣1)<f(x)在x∈(1,+∞)上恒成立,求k的最大值.
如图是某生态系统的食物网,请根据图回答:
下列地形区中属于北方地区的是( )