皮皮学，免费搜题
登录
搜题
【单选题】
比较两个ASCII 码字符串是否相等。字符串长度在内部RAM3FH 单元,两字符串的首地址分别为40H、50H。如果两个字符串相等,置CY=1,否则,置CY=0。部分程序如下,空格里应填上什么指令? MOV R0,#40H MOV R1,#50H MOV R2,#3FH LOOP1:MOV A,@R0 CLR C ______,@R1 JNZ LOOP2 INC R0 INC R1 ______,LOOP1 SETB C RET LOOP2:CLR C RETA.
SUBB A; DJNZ R1
B.
SUBB A; DJNZ R2
C.
SUBB A; DJNZ R3
D.
SUBB A; DJNZ R4
拍照语音搜题，微信中搜索"皮皮学"使用
参考答案：
参考解析：
知识点：
皮皮学刷刷变学霸
举一反三
【简答题】 Part One Q1-12 You will hear three telephone conversations or messages. Write one or two words or a number in the numbered spaces on the notes or forms below. After you have listened once, ...
【简答题】Part One Q1-12 You will hear three telephone conversations or messages. Write one or two words or a number in the numbered spaces on the notes or forms below. After you have listened once, re...
【单选题】Section B Conversation One Q8:What does the man say about himself ?
A.
He's got addicted to technology.
B.
He is not very good at socializing.
C.
He is crazy about text-messaging.
D.
He does not talk long on the phone.
【简答题】Part One Q1-12 You will hear three telephone conversations or messages. Write one or two words or a number in the numbered spaces on the notes or forms below. After you have listened once, re...
【单选题】Long Conversations A. Conversation One Q1: Where are the speakers?
A.
In a showroom.
B.
In a meeting room.
C.
In a store.
D.
In a cafe.
【简答题】Part One Q1-12 You will hear three telephone conversations or messages. Write one or two words or a number in the numbered spaces on the notes or forms below. After you have listened once, re...
相关题目：