下列生理过程中属于负反馈调节的是（）
A.初级排尿反射
B.减压反射
C.分娩
D.血液凝固
E.心室异常自身调节
参考答案：B
Many people are worried about the housing-price that keeps ________ all the time in recent years. [ ]
A. going
B. rising
C. raising
D. lifting
静脉输液时，滴速应根据病人的病情、_________、__________调节。
