已知
,
,
,则
的值是( ).
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/37b05cf2746c4450c4b99d765bd37170.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b178398b8a3b6ca1a98538af1f316987.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/adc3863bf7b826b025095f9b147e2514.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8fd1f0ace9ca0b79929e73af6c201c2e.png)
A.-7 | B.-3 | C.-7或-3 | D.±7或±3 |
更新时间:2019-11-10 20:48:54
|
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单选题
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【推荐2】已知实数a满足
,那么
的值是( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/49e537f317a239a6a0d6586d735cb862.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ca7a93e6d86ee16e1974d6b6822d97e0.png)
A.2005 | B.2006 | C.2007 | D.2008 |
您最近一年使用:0次
单选题
|
适中
(0.65)
【推荐1】对一个正整数
进行如下变换:若
是奇数,则结果是
;若
是偶数,则结果是
,我们称这样的操作为第
次变换,再对所得结果进行同样的操作称为第
次变换,
.以此类推.如对
第
次变换的结果是
,第
次变换的结果是
,第
次变换的结果是
,
.若正整数
第
次变换的结果是
,则
可能的值有( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81dea63b8ce3e51adf66cf7b9982a248.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81dea63b8ce3e51adf66cf7b9982a248.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5c5307c068845c65410cb30291d62ec2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81dea63b8ce3e51adf66cf7b9982a248.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f78406ecea4daed4a1f9deae760701de.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/bdaa19de263700a15fcf213d64a8cd57.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/61128ab996360a038e6e64d82fcba004.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/aee7bb49247387a9028602315729f8d7.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6f8c4c029e552954bd493b49aeab82d5.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/bdaa19de263700a15fcf213d64a8cd57.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5ca7d1107389675d32b56ec097464c14.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/61128ab996360a038e6e64d82fcba004.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d07ae0b4264da6a8812454ffd2f20d94.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5ca7d1107389675d32b56ec097464c14.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d91e07104b699c4012be2d26160976a2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/aee7bb49247387a9028602315729f8d7.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6f8c4c029e552954bd493b49aeab82d5.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/bdaa19de263700a15fcf213d64a8cd57.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
A.![]() | B.![]() | C.![]() | D.![]() |
您最近一年使用:0次
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适中
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【推荐2】如图,数轴上A,B两点所表示的数分别为a,b,下列各式:①
;②
;③
.其中正确式子的序号是( )
![](https://img.xkw.com/dksih/QBM/editorImg/2023/12/21/fa4c641f-7340-43c4-bf97-f88c35fef997.png?resizew=264)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/39d5f0d374837655cc286d326305da36.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/bd039882414ced3cd59d7a4d5ec76f35.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7ffdae22c7cbe7c28442cf1ec16590fc.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2023/12/21/fa4c641f-7340-43c4-bf97-f88c35fef997.png?resizew=264)
A.①② | B.②③ | C.①③ | D.①②③ |
您最近一年使用:0次