甲状旁腺分泌甲状旁腺激素调节血浆中钙离子浓度，属于
A．神经调节B．体液调节C．神经—体液调节D．自身调节E．负反馈
参考答案：B
In this lecture, I can only give you a purely_______view of how we can live life to the full and make some suggestions about the future.
A．precious
B．unique
C．different
D．personal
电机相间不平衡电流规定是多少？
