18、 INCLUDEPICTURE \d "https://p.ananas.chaoxing.com/star3/origin/cff312e9958b2e5f345a654f2f913a78.png" \* MERGEFORMATINET
展开式种 INCLUDEPICTURE \d "https://p.ananas.chaoxing.com/star3/origin/1680a5a303521eb32b18d65f8facd0f6.png" \* MERGEFORMATINET
项的系数为_________( )
( )
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73、据既往经验,注射破伤风抗毒素异常发生率为5‰,某医院一年接种600人次,无1例发生异常,该情况发生的可能性P(X=0)应等于 ( )。
(1.0)
A. INCLUDEPICTURE \d "http://mooc1-api.chaoxing.com/ananas/latex/p/887682" \* MERGEFORMATINET
B. INCLUDEPICTURE \d "http://mooc1-api.chaoxing.com/ananas/latex/p/887683" \* MERGEFORMATINET
C. 0/600
D. 1- INCLUDEPICTURE \d "http://mooc1-api.chaoxing.com/ananas/latex/p/887683" \* MERGEFORMATINET
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6、享有“人工智能之父”、“计算机之父”美誉的科学家是
(1.0)
A. 爱因斯坦
B. 比尔.盖茨
C. 冯.诺依曼
D. 阿兰.图灵
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38、设A是 INCLUDEPICTURE \d "http://mooc1-2.chaoxing.com/ananas/latex/p/111984" \* MERGEFORMATINET
矩阵,齐次线性方程组 INCLUDEPICTURE \d "http://mooc1-2.chaoxing.com/ananas/latex/p/181683" \* MERGEFORMATINET
仅有零解的充要条件是 INCLUDEPICTURE \d "http://mooc1-2.chaoxing.com/ananas/latex/p/53238" \* MERGEFORMATINET
(1.0)
A. 小于m
B. 小于n
C. 等于m
D. 等于n
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0.05
第2空:
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26、某线性方程组的增广矩阵已经由行变换化为以下形式.
A. 唯一解
B. 无数多解
C. 无解
D. 不能确定
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17、设矩阵 INCLUDEPICTURE \d "http://mooc1-2.chaoxing.com/ananas/latex/p/555929" \* MERGEFORMATINET
, INCLUDEPICTURE \d "http://mooc1-2.chaoxing.com/ananas/latex/p/581268" \* MERGEFORMATINET
,则 INCLUDEPICTURE \d "http://mooc1-2.chaoxing.com/ananas/latex/p/320327" \* MERGEFORMATINET
( )
(1.0)
A. 0
B. (1,-1)
C. INCLUDEPICTURE \d "https://mooc1-2.chaoxing.com/ananas/latex/p/113749" \* MERGEFORMATINET
D. INCLUDEPICTURE \d "http://p.ananas.chaoxing.com/star3/origin/67a557abb156385a453c741fec934ab8" \* MERGEFORMATINET
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19、下面不是普通坐标(2,3)的齐次坐标的是( )
(1.0)
A. (2,3,1)
B. (-2,-3,1)
C. (-2,-3,-1)
D. (4,6,2)
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44、假设A地有2万人口,B地有3万人口,C地有5万人口,他们按如图方式在城市间迁移,三地人口总数不变。
A. 转移概率矩阵为P, INCLUDEPICTURE \d "https://p.ananas.chaoxing.com/star3/origin/ac442473ae925a595caa561099f38720.png" \* MERGEFORMATINET
B. 若 INCLUDEPICTURE \d "https://p.ananas.chaoxing.com/star3/origin/c6c825aa831220855e505785daab06ce.png" \* MERGEFORMATINET ,则 INCLUDEPICTURE \d "https://p.ananas.chaoxing.com/star3/origin/92b22837f266b5578e50fe1899f2228a.png" \* MERGEFORMATINET
C. 每个转移概率矩阵都有唯一对应的稳态向量,稳态向量就是转移概率矩阵属于特征值为1的特征向量。
D. 转移概率矩阵每个元素表示转移的比例,所以每一行元素之和为1
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45、若 INCLUDEPICTURE \d "https://p.ananas.chaoxing.com/star3/origin/ba9534d6f6b211ac0bf3b80db4a5843b.png" \* MERGEFORMATINET
是齐次线性方程组AX=0的解,则( )一定也是AX=0的解
(1.0)
A. INCLUDEPICTURE \d "https://p.ananas.chaoxing.com/star3/origin/692f9fd4dfd71709e724a1a848ac08b3.png" \* MERGEFORMATINET
B. INCLUDEPICTURE \d "https://p.ananas.chaoxing.com/star3/origin/50770833d22f060e7239d5c5ad2abfcb.png" \* MERGEFORMATINET
C. INCLUDEPICTURE \d "https://p.ananas.chaoxing.com/star3/origin/e5757f1f8d9f69ca161ce967e93f2d4a.png" \* MERGEFORMATINET
D. INCLUDEPICTURE \d "https://p.ananas.chaoxing.com/star3/origin/784cfc65930f1ace82cd31c28b60ddbf.png" \* MERGEFORMATINET
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