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【单选题】
用试电笔测试 ( ) 电压时，一般没有指示。A.
110V
B.
220V
C.
500V
D.
36V
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【单选题】–Do you know ? –Yes. At about twelve. I was just about to go to bed.
A.
when he came back
B.
when he will come back
C.
whether he goes to bed late
【简答题】写出下列指令执行的结果: MOV A, #7FH CPL A MOV R0, A RL A SWAP A 最终结果: (R0)=( ) (A)=( )
【简答题】指出下面程序段执行后的结果,要求在每条指令的右侧以注释的形式写出指令的执行结果,最后再填空。 MOV A , #54H MOV 30H , #7CH MOV R0 , #40H SWAP A MOV @R0 , A XCH A , 30H XCHD A , @R0 ( A ) = ,( 30H ) = ,( R0 ) = ,...
【单选题】–When will you tell him the good news? --I will tell him about it as soon as he _______ back.
A.
comes
B.
came
C.
will come
D.
is coming
【单选题】– When ________ again?--When he ____________, I’ll let you know.
A.
he comes ；comes
B.
will he come; will come
C.
he comes will he come
D.
will he come; comes
【单选题】–I hear that a famous scientist will come to give us a talk. Do you know ______? --About the development of the modern science.
A.
when he will come
B.
when will he come
C.
what he will talk about
D.
what will he talk about
【简答题】请写出下列每条指令的执行结果 MOV A, #24H; (10分) A= MOV R0, #37H; (10分) R0= ORL A, R0; (10分) A= XRL A, #29H; (20分) A= MOV 35H, #10H ; (10分) 35H= ORL 35H, #29H; (10分...
【简答题】写出下列指令执行的结果 MOV A,#20H MOV R0,#20H MOV @R0, A ANL A, #0FH ORL A, #80H XRL A, @R0 A=( );R0=( ) ;(20H)= ( )
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