康明斯发动机上使用的温度传感器随着温度的升高其电阻的阻值（）。
A.升高
B.降低
C.不变
D.波动
参考答案：B
I ______along the street looking for a place to park when the accident______ .
A．went; was occurring
B．went; occurred
C．was going; occurred
D．was going; had occurred
简叙我厂UNITROLF励磁调节器的励磁限制功能
