把不超过
的最大整数记作
,如
,
,
,若实数
,
满足
,且
,则
( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81dea63b8ce3e51adf66cf7b9982a248.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2c4f5908d6a1217e493ed7586b6964dd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/da6b88b66b17be89ce73b48fdb657e4b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/96dd96059f06a848fa8827697fc30cc1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/01c1df61d62bbfe64920f4828a6505aa.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2c94bb12cee76221e13f9ef955b0aab1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/32605b7a41d87e87a5335688abe8aa29.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2f00f997ae12c30f551adb834e1d7ef8.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e5f734e19f28bfc858607b992deeb780.png)
A.6 | B.7 | C.8 | D.9 |
更新时间:2023-12-14 10:12:00
|
相似题推荐
单选题
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名校
解题方法
【推荐1】函数
的值域为( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d75e24b53c7e48b8f85d3f334c280106.png)
A.![]() | B.![]() |
C.![]() | D.![]() |
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【推荐2】若定义在
上的函数
满足:对于任意
,![](https://staticzujuan.xkw.com/quesimg/Upload/formula/aec19b68e3add9d5bfcc6269a1855b87.png)
,都有
,且当
时,有
,
在区间
上的最大值,最小值分别为
,
,则
的值为( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7da3a6d011679952771607b3a166676b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c814128ea2139e33db94ea590e7c2223.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/aec19b68e3add9d5bfcc6269a1855b87.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/629b88e47729cc7132de4a50355e8d02.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5b357bf8cea898e26d9521931fc79b28.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/08115d6d9f876dea921a4d32260ff1fb.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c34ae56d9c9dbbea0c8f68086b5f7677.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/93cf8ebaa1b630be113887d7c933a563.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ac047e91852b91af639feec23a9598b2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/54a5d7d3b6b63fe5c24c3907b7a8eaa3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3ae0f8520349250a31be6d58542ef2d9.png)
A.2014 | B.2015 | C.4028 | D.4030 |
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解题方法
【推荐1】已知函数
是定义在
上的奇函数,则实数
的值是( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1274f2ac3a98428b0a4e295c96627ac9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a43b2faa4f81f32d94612dce724e772b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
A.1 | B.![]() | C.2 | D.![]() |
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【推荐2】“喊泉”是一种地下水的毛细现象.在合适的条件下,人们在泉口吼叫或发出其他声响时,声波传入泉洞内的储水池,进而产生一系列物理声学作用.已知声音越大,涌起的泉水越高,声强
与参考声强
之比的常用对数称作声强的声强级,记作
(单位:分贝),即
.若某处“喊泉”的声强级
(单位:分贝)与喷出的泉水高度
(单位:分米)满足关系式
,
两人分别在这处“喊泉”大喊一声,若
“喊泉”喷出泉水的高度比
“喊泉”喷出的泉水高度高5分米,则
“喊泉”的声强是
“喊泉”声强的( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/294f5ba74cdf695fc9a8a8e52f421328.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/26e93d8fb77f5bd2c0fc690752dfd771.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0c88d9142df6ba8e43c1a93bd04a1362.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/58af3d9a71fba4db852926717e7e543d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0c88d9142df6ba8e43c1a93bd04a1362.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81dea63b8ce3e51adf66cf7b9982a248.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/693e379e667de365041683ac64338b41.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/01c74a907dda6bb7d9d56d009d9df253.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5963abe8f421bd99a2aaa94831a951e9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7f9e8449aad35c5d840a3395ea86df6d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5963abe8f421bd99a2aaa94831a951e9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7f9e8449aad35c5d840a3395ea86df6d.png)
A.5倍 | B.10倍 | C.20倍 | D.100倍 |
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