在字符串传送指令中，若要求每一次串操作后，自动增加地址指针，则标志DF等于多少？
参考答案：DF=0
It's the first time that he has been to Australia，________？
A．isn't he
B．hasn't he
C．isn't it
D．hasn't it
测温孔的设置一般应选择温度变化小，容易散失热量、构件易于受冻结的部位。( )
