由稳压二极管组成的稳压电路，限流电阻与稳压管配合达到稳压的目的。
参考答案：对
Before the Hope Project was carried out in this poor area, children here had no ________ to education.[ ]
A. access
B. approach
C. attitude
D. attraction
汽车有一个发动机，汽车与发动机之间的关系是（）关系。
A．一般与具体
B．整体与部分
C．分类
D．is a
