中性温度
参考答案：是指在一种适宜的环境温度下，机体耗氧量少，代谢率最低，蒸发散热量亦少，又能保持正常体温。
The main purpose of Paragraph 2 is to ______.
A．answer an objection that some readers may raise to Paragraph 1
B．guard against the possibility that you have read Paragraph 1
C．contradict the idea of Paragraph 1
D．show more optimistic than Paragraph 1
有关功能失调性子宫出血错误的描述是( )
A．好发于青春期和绝经过渡期B．基础体温呈双向型C．表现为月经周期紊乱，周期长短不一D．可应用大量雌激素止血E．子宫内膜呈增生性改变
