发生电火警时在没有确认切断电源时,灭火严禁使用()。
A.四氯化碳灭火器
B.二氧化碳灭火器
C.酸碱泡沫灭火器
D.干粉灭火器
参考答案:C
根据首字母和句意填空。
1. How many kinds of t_________do you use to get to school?
2. —You can choose a m_________of communication (通讯工具) to help you finish the work.
—But I took all possible m_________. They are useless to do it.
3. The cold wind is from the n_________.
4. There was a war in S_________China.
5. _________ _________ _________ students in my class like basketball.
6. There is a bridge _________ the river.
7. I write many articles w _________ my new pen.
8. What do you think of the people _________ the town?
9. I like to ride my bike to the park with him _________ the weekend.
10. Tom is _________ American.
请编制程序,其功能为:从SOURCE开始的内存区域存放着N个字节的有符号数。现找出最大的数,结果存放到RESULT 指示的,其后存放原N个数逻辑取反后的值。 例如: 数据为:09H,7EH,89H,F6H,17H……67H(N个数据) 结果为:7EH (最大数),F6H,81H,76H,0CH,E8H……98H(原N个数的逻辑反) 部分程序已经给出,其中原始数据由LOAD过程从文件INPUT1.DAT 中读入从SOURCE开始的内存单元,运算结果要求从RESIULT开始存放,由SAVE 过程保存到OUTPUT1.DAT 文件中。请在BEGIN和END 之间补充使其完整,完成要求的功能。或删除BEGIN和END 之间原有的代码井自行编程来完成要求的功能。 对程序必须进行汇编,并与IO. OBJ 链接产生PROG1. EXE 执行文件,最终产生运行结果。 部分程序如下; ;PROG1. ASMEXTRN LOAD: FAR,SAVE:FAR N EQU 30 DSEG SEGMENT SOURCE DW N DUP () RESULT DW N DUP (0) NAME0 DB ’INPUT1.DAT’,0 NAME1 DB ’OUTPUT1.DAT’,0 DSEG ENDS SSEG SEGMENT STACKDB 128 DUP () SSEG ENDS CSEG SEGMENT ASSUME CS:CSEG,DS:DSEG;SS:SSEG START PROC FAR PUSH DS XOR AX,AX PUSH AX MOV AX, DSEG MOV DS,AX MOV ES,AX LEA DX,SOURCE LEA SI,NAME0 MOV CX,N CALL LOAD; *** BEGIN *** ______ SI,SOURCE MOV BX,OFFSET SOURCE LEA DI,RESULT L1: MOV CX,N MOV DX,CX DEC DX MOV AL,______ L2: INC BX ______ AL,[BX] ______________ MOV AL,[BX] L3: DEC DX JNZ______ MOV [DI],AL INC DI CLD MAX: LODSB NOT AL ______________ LOOP MAX; *** END *** LEA DX,RESULT LEA SI,NAME1 MOV CX,N CALL SAVE RET START ENDP CSEG ENDS END START