汇编语言中，经过定义的每个变量均有3个属性，下列（）不属于变量的属性。
A.段属性
B.偏移量属性
C.类型属性
D.地址属性
参考答案：D
句子改错
下面每个题划线部分中只有一个错误，请选出并改正。将其字母代号填入题前的括号内。
小题1:______He came into the classroom and the students stopped to talk.
A B C D
小题2:_______ Several hundredsstudentscame to our school.
小题3: _______ He has died for nearly ten years , but we can never forget him .
小题4: Where is he ?” “He ’s been to Paris.”
小题5: ________ Because I was ill, so I didn’tgo to school.
用埋弧自动焊焊接某易淬硬钢，要求线能量q＝20.3KJ／cm，已知电弧电压U＝38V，焊接速度v＝36m／h，求应选用多大的焊接电流？
