【单选题】有如下类定义: class Sample { public Sample(int x):ref(x){} //① private: Sample():ref(0){) //② static int val=5 //③ const int ref //④ } 上述程序段中,错误的语句是( )。 A) ① B) ② C) ③ D) ④
【单选题】听力原文: The UN Security Council has unanimously adopted a resolution renewing the UN peace-keeping force in Rwanda for another 6 months while reducing its size by more than half. The UN resolution autho...