【单选题】现在有一个整型变量num,初始值为15,则想要将该num变量转换为引用数据类型对象,对象名为n,以下哪些代码是正确的?
D.
Integer n=new Integer(num);
【单选题】段是表空间中一种逻辑存储结构,以下哪个不是ORACLE数据库使用的段类型( )
【单选题】That ________ my father. ________ are my grandparents. [ ]
【简答题】如图13.5.10(a)所示电路中非线性电阻的电压、电流关系如图(b)所示。网络N的阻抗参数矩阵 ,求电流I和I 1 。
【单选题】In the colonial period, it was difficult to tell privateering from piracy because those with private citizen license______.
A.
attacked every ship they saw.
B.
didn't observe the restrictions
C.
were attacked by other states.
D.
cooperated with pirates.
【单选题】图1-10所示电路中,电流 =______。