39[填空题] 如果在子类中想使用被子类隐藏的父类的成员变量或方法可以使用关键字____________。 - 查题网

>> 河南成教 / 河南理工大学

河南成教 / 河南理工大学

39[填空题]
如果在子类中想使用被子类隐藏的父类的成员变量或方法可以使用关键字____________。

积分

河南理工大学

参考答案：

点击查看答案

佳题速递：

所谓效率是指所完成的任务与＿＿＿＿＿＿＿＿的比例。效率是对完成任务的速度和成本的数量要求。教育管理案例研究

10[多选题] MRP有三种输入信息，即主生产计划、库存状态和( )信息 A.产品结构信息 B.批量 C.安全库存量 D.在制品定额生产与运作管理

中国药典正文中所收载药品或制剂的质量标准的内容包括药物分析

有以下程序段，输出结果是( )。 int x=3; do { printf("%d ",x-=2); }while(!(- -x)); 高级程序设计语言

题型描述: 阅读理解 The biggest safety threat facing airlines today may not be a terrorist with a gun, but the man with the portable computer in business class. In the last 15 years, pilots have reported well over 100 incidents that could have been caused by electromagnetic interference. The source of this interference remains unconfirmed, but increasingly, experts are pointing the blame at portable electronic device such as portable computers, radio and cassette players and mobile telephones.RTCA, an organization which advises the aviation (航空) industry, has recommended that all airlines ban (禁止) such devices from being used during “critical” stages of flight, particularly take-off and landing. Some experts have gone further, calling for a total ban during all flights. Currently, rules on using these devices are left up to individual airlines. And although some airlines prohibit passengers from using such equipment during take-off and landing, most are reluctant to enforce a total ban, given that many passengers want to work during flights.The difficulty is predicting how electromagnetic fields might affect an aircraft’s computers. Experts know that portable device emit radiation which affects those wavelengths which aircraft use for navigation and communication. But, because they have not been able to reproduce these effects in a laboratory, they have no way of knowing whether the interference might be dangerous or not.The fact that aircraft may be vulnerable (易受损的) to interference raises the risk that terrorists may use radio systems in order to damage navigation equipment. As worrying, though, is the passenger who can’t hear the instructions to turn off his radio because the music’s too loud.高级英语I

1[单选题] 钢筋混凝土过梁梁端部支承长度不宜小于 A.180mm B.240mm C.300mm D.350mm建筑构造