关于调定点的叙述,错误的是()
A.位于视前区-下丘脑前部
B.温度敏感神经元起着调定点的作用
C.规定数值为37℃
D.发热时调定点不变
E.致热原可使调定点上移
参考答案:D
Some pre-school children go to a day care center,___________ they learn simple games and
songs. [ ]
A. then
B. there
C. while
D. where
如何指导客户做到卷烟库存合理化?