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下列运算正确的是A.+=B.×=C.(-1)2=3-1D.=5-3
试题详情
下列运算正确的是( )
A.
![](data:image/png;base64,iVBORw0KGgoAAAANSUhEUgAAAA8AAAASCAYAAACEnoQPAAAAAXNSR0IArs4c6QAAAARnQU1BAACx
jwv8YQUAAAAJcEhZcwAADsMAAA7DAcdvqGQAAAC0SURBVDhPzZNNDsAQEIXnXBaOY+8m1g5i6yBd
zFFe/bY0pGpViUTEN+/NA2EwiAhLcwaP9p979HOYLWTNQfvL7IJtDy0tOCFhHYpU/h1mLmAW9PoL
3CbqNeib7Vsx3f0OnEqU4KTNCbz3/HgIbCWoBEhwqjxFdV9BsDcdTd/knEvnjCAIc2Q7U5hh5Sjt
5CCrd3BUaj5Kk1ffswqHovpcuW+ma+4wAiTMHhzrRvUt5WpqFT4BvDKYovKwNAUAAAAASUVORK5C
YII=
)
+
![](data:image/png;base64,iVBORw0KGgoAAAANSUhEUgAAAA8AAAASCAYAAACEnoQPAAAAAXNSR0IArs4c6QAAAARnQU1BAACx
jwv8YQUAAAAJcEhZcwAADsMAAA7DAcdvqGQAAAC/SURBVDhPzZNBEsUQEETnXBaOY+8m1g5iOwfJ
wlH6ZwRJ8ItklVSpQmn9picIg4+IsDT+iUf77R59XMz2zEB7xIw7x44e2nI+zrASZl5PxZG5OskN
0WtQdp+Ku0ClhFXnVsyWUKp45nyrH3ggjvDaokQnRIRgchtMJZRfs8fV8KVHpVUhhDR1iqDcluat
WBKu3ZIDe2iyPi0SweF+FUtA/SM58G98ZscV9xH28A1cNzenQMq9E8tF4v7KuVCsin81ApctPDAe
KwAAAABJRU5ErkJggg==
)
=
![](data:image/png;base64,iVBORw0KGgoAAAANSUhEUgAAAA8AAAASCAYAAACEnoQPAAAAAXNSR0IArs4c6QAAAARnQU1BAACx
jwv8YQUAAAAJcEhZcwAADsMAAA7DAcdvqGQAAACySURBVDhPzZO5EcMgEEW3LgLKId9OiCmElEIU
UMq3lsOAjTRrRWaGhOH9Y5EIm0VEUO0reHf+eUb/D+dgxxxsQD4jK2MncAPmmjo4MTh9T0cBZwTb
n44xayjg4ZhYRCyCFNZ3HgJlcK3DT85VYgyPEF17AveWl0/zep1wd44xlnveEIw/apcbOPGuc0lQ
3Rc4B9jpR5mfbMnnzkvifh97FFrgwxuQ8c9g0RT3R849kBZ+AeaPnaoEN+d7AAAAAElFTkSuQmCC
)
B.
![](data:image/png;base64,iVBORw0KGgoAAAANSUhEUgAAAA8AAAASCAYAAACEnoQPAAAAAXNSR0IArs4c6QAAAARnQU1BAACx
jwv8YQUAAAAJcEhZcwAADsMAAA7DAcdvqGQAAAC0SURBVDhPzZNNDsAQEIXnXBaOY+8m1g5i6yBd
zFFe/bY0pGpViUTEN+/NA2EwiAhLcwaP9p979HOYLWTNQfvL7IJtDy0tOCFhHYpU/h1mLmAW9PoL
3CbqNeib7Vsx3f0OnEqU4KTNCbz3/HgIbCWoBEhwqjxFdV9BsDcdTd/knEvnjCAIc2Q7U5hh5Sjt
5CCrd3BUaj5Kk1ffswqHovpcuW+ma+4wAiTMHhzrRvUt5WpqFT4BvDKYovKwNAUAAAAASUVORK5C
YII=
)
×
![](data:image/png;base64,iVBORw0KGgoAAAANSUhEUgAAAA8AAAASCAYAAACEnoQPAAAAAXNSR0IArs4c6QAAAARnQU1BAACx
jwv8YQUAAAAJcEhZcwAADsMAAA7DAcdvqGQAAAC/SURBVDhPzZNBEsUQEETnXBaOY+8m1g5iOwfJ
wlH6ZwRJ8ItklVSpQmn9picIg4+IsDT+iUf77R59XMz2zEB7xIw7x44e2nI+zrASZl5PxZG5OskN
0WtQdp+Ku0ClhFXnVsyWUKp45nyrH3ggjvDaokQnRIRgchtMJZRfs8fV8KVHpVUhhDR1iqDcluat
WBKu3ZIDe2iyPi0SweF+FUtA/SM58G98ZscV9xH28A1cNzenQMq9E8tF4v7KuVCsin81ApctPDAe
KwAAAABJRU5ErkJggg==
)
=
![](data:image/png;base64,iVBORw0KGgoAAAANSUhEUgAAAA8AAAASCAYAAACEnoQPAAAAAXNSR0IArs4c6QAAAARnQU1BAACx
jwv8YQUAAAAJcEhZcwAADsMAAA7DAcdvqGQAAADISURBVDhP1ZOxDcQgDEU9FwXj0HsTagahZZAU
jPIPgwMhxyko3SFFigzP3/+TEBaLiLD1/IJX9XuN/gTOAbbmYREysD12DrZDp9U9OHEBGekW0Aac
ESyBWRq0K2Tt8gyrKqdGXMd/hOthG1Dy0ZXAqv4CbjZsiZsQnXpxvbf4GkL3sDSD4oJijPWcNwTj
j/o+wWVgUaIzJclAbQyJOkFTn2GpNJ8t7XFlk2dXNkX9G17/JhN8eAMy/h0s/UX9lXL/Zq9pryeu
1Q+uWIPqmKo/AAAAAABJRU5ErkJggg==
)
C.(
![](data:image/png;base64,iVBORw0KGgoAAAANSUhEUgAAAA8AAAASCAYAAACEnoQPAAAAAXNSR0IArs4c6QAAAARnQU1BAACx
jwv8YQUAAAAJcEhZcwAADsMAAA7DAcdvqGQAAAC0SURBVDhPzZNNDsAQEIXnXBaOY+8m1g5i6yBd
zFFe/bY0pGpViUTEN+/NA2EwiAhLcwaP9p979HOYLWTNQfvL7IJtDy0tOCFhHYpU/h1mLmAW9PoL
3CbqNeib7Vsx3f0OnEqU4KTNCbz3/HgIbCWoBEhwqjxFdV9BsDcdTd/knEvnjCAIc2Q7U5hh5Sjt
5CCrd3BUaj5Kk1ffswqHovpcuW+ma+4wAiTMHhzrRvUt5WpqFT4BvDKYovKwNAUAAAAASUVORK5C
YII=
)
-1)
2=3-1
D.
![](data:image/png;base64,iVBORw0KGgoAAAANSUhEUgAAACwAAAAbCAYAAAAH+20UAAAAAXNSR0IArs4c6QAAAARnQU1BAACx
jwv8YQUAAAAJcEhZcwAADsMAAA7DAcdvqGQAAAF5SURBVFhH7ZZBroQgDIZ7Lhccxz03ce1B3HKQ
WXCUPooi4AApj5o4mSExcQj88/G31AIWBgDgY58acGn+CXPwA745DF/osNHxgmoj529Fd8xhu6IK
kPTuqota7Th0Q3cI2BqDKZ5dFYJas7n/0Ld0h4DfYCiMAsAtXVFgclgkJS7Eqa4gsEF9h7uY64oB
G62dtPy46ooAU8gkK1o4dkmXDewrQGiK0tC7i5blrfvNhj9Kode9bqroMoHL+Zkd4uzwuKmRarp3
tz+W9MSciy4PuMc1bhpbm9VroyNwS4IBbHFVoT/muselPtZR/WbmEQM4/jm5AKCQ8/Xd11aeBO5c
dwcwofu8ZYqzfe7oQ7oc3gHu+UBw+xDAbT5CN5+GUCjrwwFLO+x94OUxbNvm2ZYJcFpe/r0FbDQv
h9np4BfuF5vjQ7TSO727nAGnxT2plX1AhdVpg96hm8V+dhvJ5XZKDKMOCWTAr2VCmJbPAaajk8sf
43CI1ZOB/wBpecmSlQv8GgAAAABJRU5ErkJggg==
)
=5-3
相关试题
-
(2006•郴州)下列运算正确的是( )
A.(-2a)3=8a3
B.3-2=-6
C.(1-
)=1
D.
-
下列分式运算中,正确的是( )
A.![](data:image/png;base64,iVBORw0KGgoAAAANSUhEUgAAAE4AAAAqCAYAAAAdz21RAAAAAXNSR0IArs4c6QAAAARnQU1BAACx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)
B.![](data:image/png;base64,iVBORw0KGgoAAAANSUhEUgAAAFAAAAAqCAYAAAAkqNwKAAAAAXNSR0IArs4c6QAAAARnQU1BAACx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==
)
C.
=-1
D.
-
下列运算正确的是( )
A.a2+a2=2a4
B.3
+2
=5![](data:image/png;base64,iVBORw0KGgoAAAANSUhEUgAAAA8AAAASCAYAAACEnoQPAAAAAXNSR0IArs4c6QAAAARnQU1BAACx
jwv8YQUAAAAJcEhZcwAADsMAAA7DAcdvqGQAAACySURBVDhPzZO5EcMgEEW3LgLKId9OiCmElEIU
UMq3lsOAjTRrRWaGhOH9Y5EIm0VEUO0reHf+eUb/D+dgxxxsQD4jK2MncAPmmjo4MTh9T0cBZwTb
n44xayjg4ZhYRCyCFNZ3HgJlcK3DT85VYgyPEF17AveWl0/zep1wd44xlnveEIw/apcbOPGuc0lQ
3Rc4B9jpR5mfbMnnzkvifh97FFrgwxuQ8c9g0RT3R849kBZ+AeaPnaoEN+d7AAAAAElFTkSuQmCC
)
C.
=-1
D.(-2a2)2=4a4
-
(2010•枣庄)下列运算正确的是( )
A.
+
=![](data:image/png;base64,iVBORw0KGgoAAAANSUhEUgAAAA8AAAASCAYAAACEnoQPAAAAAXNSR0IArs4c6QAAAARnQU1BAACx
jwv8YQUAAAAJcEhZcwAADsMAAA7DAcdvqGQAAACySURBVDhPzZO5EcMgEEW3LgLKId9OiCmElEIU
UMq3lsOAjTRrRWaGhOH9Y5EIm0VEUO0reHf+eUb/D+dgxxxsQD4jK2MncAPmmjo4MTh9T0cBZwTb
n44xayjg4ZhYRCyCFNZ3HgJlcK3DT85VYgyPEF17AveWl0/zep1wd44xlnveEIw/apcbOPGuc0lQ
3Rc4B9jpR5mfbMnnzkvifh97FFrgwxuQ8c9g0RT3R849kBZ+AeaPnaoEN+d7AAAAAElFTkSuQmCC
)
B.
×
=![](data:image/png;base64,iVBORw0KGgoAAAANSUhEUgAAAA8AAAASCAYAAACEnoQPAAAAAXNSR0IArs4c6QAAAARnQU1BAACx
jwv8YQUAAAAJcEhZcwAADsMAAA7DAcdvqGQAAADISURBVDhP1ZOxDcQgDEU9FwXj0HsTagahZZAU
jPIPgwMhxyko3SFFigzP3/+TEBaLiLD1/IJX9XuN/gTOAbbmYREysD12DrZDp9U9OHEBGekW0Aac
ESyBWRq0K2Tt8gyrKqdGXMd/hOthG1Dy0ZXAqv4CbjZsiZsQnXpxvbf4GkL3sDSD4oJijPWcNwTj
j/o+wWVgUaIzJclAbQyJOkFTn2GpNJ8t7XFlk2dXNkX9G17/JhN8eAMy/h0s/UX9lXL/Zq9pryeu
1Q+uWIPqmKo/AAAAAABJRU5ErkJggg==
)
C.(
-1)2=3-1
D.
=5-3
-
(2010•静安区二模)下列运算正确的是( )
A.(-1)=-1
B.(-1)=0
C.(-1)-1=-1
D.(-1)-1=1
-
下列运算正确的是( )
A.(-2a)3=8a3
B.3-2=-6
C.(1-
)=1
D.
-
(2010•枣庄)下列运算正确的是( )
A.
+
=![](data:image/png;base64,iVBORw0KGgoAAAANSUhEUgAAAA8AAAASCAYAAACEnoQPAAAAAXNSR0IArs4c6QAAAARnQU1BAACx
jwv8YQUAAAAJcEhZcwAADsMAAA7DAcdvqGQAAACySURBVDhPzZO5EcMgEEW3LgLKId9OiCmElEIU
UMq3lsOAjTRrRWaGhOH9Y5EIm0VEUO0reHf+eUb/D+dgxxxsQD4jK2MncAPmmjo4MTh9T0cBZwTb
n44xayjg4ZhYRCyCFNZ3HgJlcK3DT85VYgyPEF17AveWl0/zep1wd44xlnveEIw/apcbOPGuc0lQ
3Rc4B9jpR5mfbMnnzkvifh97FFrgwxuQ8c9g0RT3R849kBZ+AeaPnaoEN+d7AAAAAElFTkSuQmCC
)
B.
×
=![](data:image/png;base64,iVBORw0KGgoAAAANSUhEUgAAAA8AAAASCAYAAACEnoQPAAAAAXNSR0IArs4c6QAAAARnQU1BAACx
jwv8YQUAAAAJcEhZcwAADsMAAA7DAcdvqGQAAADISURBVDhP1ZOxDcQgDEU9FwXj0HsTagahZZAU
jPIPgwMhxyko3SFFigzP3/+TEBaLiLD1/IJX9XuN/gTOAbbmYREysD12DrZDp9U9OHEBGekW0Aac
ESyBWRq0K2Tt8gyrKqdGXMd/hOthG1Dy0ZXAqv4CbjZsiZsQnXpxvbf4GkL3sDSD4oJijPWcNwTj
j/o+wWVgUaIzJclAbQyJOkFTn2GpNJ8t7XFlk2dXNkX9G17/JhN8eAMy/h0s/UX9lXL/Zq9pryeu
1Q+uWIPqmKo/AAAAAABJRU5ErkJggg==
)
C.(
-1)2=3-1
D.
=5-3
-
下列运算正确的是( )
A.
+
=![](data:image/png;base64,iVBORw0KGgoAAAANSUhEUgAAAA8AAAASCAYAAACEnoQPAAAAAXNSR0IArs4c6QAAAARnQU1BAACx
jwv8YQUAAAAJcEhZcwAADsMAAA7DAcdvqGQAAACySURBVDhPzZO5EcMgEEW3LgLKId9OiCmElEIU
UMq3lsOAjTRrRWaGhOH9Y5EIm0VEUO0reHf+eUb/D+dgxxxsQD4jK2MncAPmmjo4MTh9T0cBZwTb
n44xayjg4ZhYRCyCFNZ3HgJlcK3DT85VYgyPEF17AveWl0/zep1wd44xlnveEIw/apcbOPGuc0lQ
3Rc4B9jpR5mfbMnnzkvifh97FFrgwxuQ8c9g0RT3R849kBZ+AeaPnaoEN+d7AAAAAElFTkSuQmCC
)
B.
×
=![](data:image/png;base64,iVBORw0KGgoAAAANSUhEUgAAAA8AAAASCAYAAACEnoQPAAAAAXNSR0IArs4c6QAAAARnQU1BAACx
jwv8YQUAAAAJcEhZcwAADsMAAA7DAcdvqGQAAADISURBVDhP1ZOxDcQgDEU9FwXj0HsTagahZZAU
jPIPgwMhxyko3SFFigzP3/+TEBaLiLD1/IJX9XuN/gTOAbbmYREysD12DrZDp9U9OHEBGekW0Aac
ESyBWRq0K2Tt8gyrKqdGXMd/hOthG1Dy0ZXAqv4CbjZsiZsQnXpxvbf4GkL3sDSD4oJijPWcNwTj
j/o+wWVgUaIzJclAbQyJOkFTn2GpNJ8t7XFlk2dXNkX9G17/JhN8eAMy/h0s/UX9lXL/Zq9pryeu
1Q+uWIPqmKo/AAAAAABJRU5ErkJggg==
)
C.(
-1)2=3-1
D.
=5-3
-
下列运算正确的是( )
A.
+
=![](data:image/png;base64,iVBORw0KGgoAAAANSUhEUgAAAA8AAAASCAYAAACEnoQPAAAAAXNSR0IArs4c6QAAAARnQU1BAACx
jwv8YQUAAAAJcEhZcwAADsMAAA7DAcdvqGQAAACySURBVDhPzZO5EcMgEEW3LgLKId9OiCmElEIU
UMq3lsOAjTRrRWaGhOH9Y5EIm0VEUO0reHf+eUb/D+dgxxxsQD4jK2MncAPmmjo4MTh9T0cBZwTb
n44xayjg4ZhYRCyCFNZ3HgJlcK3DT85VYgyPEF17AveWl0/zep1wd44xlnveEIw/apcbOPGuc0lQ
3Rc4B9jpR5mfbMnnzkvifh97FFrgwxuQ8c9g0RT3R849kBZ+AeaPnaoEN+d7AAAAAElFTkSuQmCC
)
B.
×
=![](data:image/png;base64,iVBORw0KGgoAAAANSUhEUgAAAA8AAAASCAYAAACEnoQPAAAAAXNSR0IArs4c6QAAAARnQU1BAACx
jwv8YQUAAAAJcEhZcwAADsMAAA7DAcdvqGQAAADISURBVDhP1ZOxDcQgDEU9FwXj0HsTagahZZAU
jPIPgwMhxyko3SFFigzP3/+TEBaLiLD1/IJX9XuN/gTOAbbmYREysD12DrZDp9U9OHEBGekW0Aac
ESyBWRq0K2Tt8gyrKqdGXMd/hOthG1Dy0ZXAqv4CbjZsiZsQnXpxvbf4GkL3sDSD4oJijPWcNwTj
j/o+wWVgUaIzJclAbQyJOkFTn2GpNJ8t7XFlk2dXNkX9G17/JhN8eAMy/h0s/UX9lXL/Zq9pryeu
1Q+uWIPqmKo/AAAAAABJRU5ErkJggg==
)
C.(
-1)2=3-1
D.
=5-3
-
(2006•郴州)下列运算正确的是( )
A.(-2a)3=8a3
B.3-2=-6
C.(1-
)=1
D.