Passage Two I was walking along the main street of a small seaside town in the north of England lookingforsomewhere to make a phone call My car had broken down outside the town and I wanted to contact the AA Low greyclouds were gathering across the sky and there was a cold damp wind blowing off the sea which nearly threw me off my feetevery time I crossed one of the side streets It had rained in the night and water was dripping from the bare trees that linedthe street I was glad that I was wearing a thick coat There was no sign of a call box , nor was there anyone at that earlyhour whom I could ask I had thought I might find a shop open selling the Sunday papers or a milkman doing his rounds ,but the town was completely dead The only living thing I saw was a thin frightened cat outside a small restaurant Thesuddenly I found what I was looking for There was a small post office , and almost hidden from sight in a dark narrowstreet Next to it was the towns only public call box , which badly nee ded a coat of paint I hurried forward , but stopped inastonishment when I saw through the dirty glass that there was a man inside He was fat, and was wearing a cheap blueplastic raincoat I could not see his face and he did not even raise his head at the sound of my footsteps Discreetly(谨慎地),I remained standing a few feet away and lit a cigarette to wait my turm It was when I threw the dead match on the groundthat I noticed something bright trickling from under the call box door1、 At what time was the story set
源程序如下:
MOV AL,0B7H
AND AL,0DDH
XOR AL,81H
OR AL,33H
JP LAB1
JMP LAB2
源程序如下:
MOV AL,0B7H
AND AL,0DDH
XOR AL,81H
OR AL,33H
JP LAB1
JMP LAB2
试问:执行程序后AL=();程序将转到哪一个地址执行:()。
—I think we can use two or more kinds of media together in an advertising campaign.
—
执行以下指令后:
MOV AL,2BH
OR AL,0FH
AL的内容为:()
执行以下指令后:
MOV AL,56H
OR AL,0FH
AL的内容为:()
有如下程序:
START: MOV BL,67H
MOV AL,BL
MOV CL,4
SHR AL,CL
MOV BH,AL
OR BH,30H
MOV AL,BL
AND AL,OFH
MOV BL,AL
OR BL,30H
INT 3
运行上面程序后,BH=(),BL=()
阅读程序,说明程序执行后BH,BL,AL,CL的值;
MOV BL, 72H
MOV AL, BL
MOV CL, 4
SHR BL, CL
OR BL, 30H
MOV BH, BL
AND AL, OFH
OR AL, 30H
MOV BL, AL
INT 3
BH=(),BL=(),AL=(),CL=()
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