派生的新类同时可以增加或重新定义数据和操作,这称为类的______性。
参考答案:层次性
单词拼写(满分5分)
小题1:It is hard to p him to stop smoking.
小题2:Everyone who often exercises can b from it.
小题3:Do you feel h when you’re often in difficulty.
小题4:If you’re not satisfied with this book, I can r you another one.
小题5:I will never f you for the rude words you said to me last night.
小题6:He was a good worker who was (尽心尽力) to his family as well as his work.
小题7:What’s your (态度) towards this practice.
小题8:Do you feel (内疚的) when you have done sth that you shouldn’t do.
小题9:Mike realized his mistake, and (道歉) at once.
小题10:He would rather die than (背叛) his country.
《继电保护和电网安全自动装置检验规程》规定,操作箱检验时应注意:对于操作箱中的出口继电器,还应进行动作电压范围的检验,其值应在()额定电压之间。