线路维修的原则是（）。
A、预防为主
B、防治结合
C、修养并重
D、综合维修
参考答案：A, B, C
Which of the following statements about the relationship between interest rates and the demand for and supply of money is most accurate Interest rates affect:（）
A. the supply of money only.
B. both the demand for and supply of money.
C. the demand for money only.
已定义下列函数： int fun(int*p) return *p;) fun函数返回值是( )。
A) 不确定的值 B) 一个整数C) 形参p中存放的值 D) 形参p的地址值
