【单选题】【消耗次数：1】
根据本讲，世界上核大国解决问题的唯一出路是（）
①
A.称霸世界
②
B.孤立主义
③
C.建立命运共同体
④
D.自我发展
参考答案：
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相关题目
随机题目
【单选题】
<imgwidth="432"height="27"v:shapes="图片_x0020_193"src="http://wljy.whut.edu.cn/uploadfiles/word/xxds02.files/image199.png">
①
<imgwidth="185"height="33"v:shapes="图片_x0020_194"src="http://wljy.whut.edu.cn/uploadfiles/word/xxds02.files/image200.png">
②
<imgwidth="176"height="32"v:shapes="图片_x0020_195"src="http://wljy.whut.edu.cn/uploadfiles/word/xxds02.files/image201.png">
③
<imgwidth="455"height="29"v:shapes="图片_x0020_196"src="http://wljy.whut.edu.cn/uploadfiles/word/xxds02.files/image202.png">
④
<imgwidth="289"height="26"v:shapes="图片_x0020_197"src="http://wljy.whut.edu.cn/uploadfiles/word/xxds02.files/image203.png">
【单选题】
设随机变量X的概率密度函数为<imgwidth="36"height="21"v:shapes="_x0000_i1112"src="http://wljy.whut.edu.cn/uploadfiles/word/xxdsb07.files/image139.png">，且<imgwidth="88"height="27"v:shapes="_x0000_i1113"src="http://wljy.whut.edu.cn/uploadfiles/word/xxdsb07.files/image141.png">，则必有（）
①
<imgwidth="36"height="21"v:shapes="_x0000_i1114"src="http://wljy.whut.edu.cn/uploadfiles/word/xxdsb07.files/image139.png">在<imgwidth="50"height="27"v:shapes="_x0000_i1115"src="http://wljy.whut.edu.cn/uploadfiles/word/xxdsb07.files/image144.png">内大于零
②
<imgwidth="36"height="21"v:shapes="_x0000_i1116"src="http://wljy.whut.edu.cn/uploadfiles/word/xxdsb07.files/image139.png">在<imgwidth="50"height="27"v:shapes="_x0000_i1117"src="http://wljy.whut.edu.cn/uploadfiles/word/xxdsb07.files/image147.png">内小于零
③
<imgwidth="90"height="35"v:shapes="_x0000_i1118"src="http://wljy.whut.edu.cn/uploadfiles/word/xxdsb07.files/image149.png">
④
<imgwidth="36"height="21"v:shapes="_x0000_i1119"src="http://wljy.whut.edu.cn/uploadfiles/word/xxdsb07.files/image139.png">在<imgwidth="50"height="27"v:shapes="_x0000_i1120"src="http://wljy.whut.edu.cn/uploadfiles/word/xxdsb07.files/image144.png">上单调增加
【单选题】
设<imgwidth="18"height="18"v:shapes="_x0000_i1383"src="http://wljy.whut.edu.cn/uploadfiles/word/xxds04.files/image008.png">为<imgwidth="14"height="16"v:shapes="_x0000_i1384"src="http://wljy.whut.edu.cn/uploadfiles/word/xxds04.files/image293.png">阶方阵，则（）不成立
①
若<imgwidth="18"height="18"v:shapes="_x0000_i1385"src="http://wljy.whut.edu.cn/uploadfiles/word/xxds04.files/image008.png">可逆，而矩阵<imgwidth="18"height="18"v:shapes="_x0000_i1386"src="http://wljy.whut.edu.cn/uploadfiles/word/xxds04.files/image008.png">的属于特征值<imgwidth="16"height="20"v:shapes="_x0000_i1387"src="http://wljy.whut.edu.cn/uploadfiles/word/xxds04.files/image491.png">的特征向量也是矩阵<imgwidth="28"height="22"v:shapes="_x0000_i1388"src="http://wljy.whut.edu.cn/uploadfiles/word/xxds04.files/image493.png">属于特征值<imgwidth="19"height="42"v:shapes="_x0000_i1389"src="http://wljy.whut.edu.cn/uploadfiles/word/xxds04.files/image495.png">的特征向量
②
<imgwidth="18"height="18"v:shapes="_x0000_i1390"src="http://wljy.whut.edu.cn/uploadfiles/word/xxds04.files/image008.png">的全部特征向量即为方程<imgwidth="106"height="24"v:shapes="_x0000_i1391"src="http://wljy.whut.edu.cn/uploadfiles/word/xxds04.files/image497.png">的全部解
③
若<imgwidth="18"height="18"v:shapes="_x0000_i1392"src="http://wljy.whut.edu.cn/uploadfiles/word/xxds04.files/image498.png">存在属于特征值<imgwidth="16"height="17"v:shapes="_x0000_i1393"src="http://wljy.whut.edu.cn/uploadfiles/word/xxds04.files/image499.png">的<imgwidth="14"height="16"v:shapes="_x0000_i1394"src="http://wljy.whut.edu.cn/uploadfiles/word/xxds04.files/image004.png">个线性无关的特征向量，则<imgwidth="56"height="20"v:shapes="_x0000_i1395"src="http://wljy.whut.edu.cn/uploadfiles/word/xxds04.files/image501.png">
④
<imgwidth="18"height="18"v:shapes="_x0000_i1396"src="http://wljy.whut.edu.cn/uploadfiles/word/xxds04.files/image008.png">与<imgwidth="26"height="22"v:shapes="_x0000_i1397"src="http://wljy.whut.edu.cn/uploadfiles/word/xxds04.files/image503.png">有相同的特征值
【单选题】
两个独立事件A和B发生的概率分别为<imgwidth="19"height="25"v:shapes="_x0000_i1029"src="http://wljy.whut.edu.cn/uploadfiles/word/xxdsb06.files/image010.png">和<imgwidth="20"height="25"v:shapes="_x0000_i1030"src="http://wljy.whut.edu.cn/uploadfiles/word/xxdsb06.files/image012.png">，则其中之一发生的概率为（）
①
<imgwidth="49"height="25"v:shapes="_x0000_i1031"src="http://wljy.whut.edu.cn/uploadfiles/word/xxdsb06.files/image014.png">
②
<imgwidth="67"height="25"v:shapes="_x0000_i1032"src="http://wljy.whut.edu.cn/uploadfiles/word/xxdsb06.files/image016.png">
③
<imgwidth="67"height="25"v:shapes="_x0000_i1033"src="http://wljy.whut.edu.cn/uploadfiles/word/xxdsb06.files/image018.png">
④
<imgwidth="140"height="25"v:shapes="_x0000_i1034"src="http://wljy.whut.edu.cn/uploadfiles/word/xxdsb06.files/image020.png">
【单选题】
<imgwidth="415"height="29"v:shapes="图片_x0020_156"src="http://wljy.whut.edu.cn/uploadfiles/word/xxds01.files/image154.png">
①
<imgwidth="57"height="28"v:shapes="图片_x0020_157"src="http://wljy.whut.edu.cn/uploadfiles/word/xxds01.files/image155.png">
②
<imgwidth="109"height="29"v:shapes="图片_x0020_158"src="http://wljy.whut.edu.cn/uploadfiles/word/xxds01.files/image156.png">
③
<imgwidth="107"height="23"v:shapes="图片_x0020_159"src="http://wljy.whut.edu.cn/uploadfiles/word/xxds01.files/image157.png">
④
<imgwidth="121"height="31"v:shapes="图片_x0020_160"src="http://wljy.whut.edu.cn/uploadfiles/word/xxds01.files/image158.png">
【单选题】
<imgwidth="361"height="296"v:shapes="_x0000_i1281"src="http://wljy.whut.edu.cn/uploadfiles/word/xxdsb08.files/image439.png">
①
<imgwidth="21"height="41"v:shapes="_x0000_i1282"src="http://wljy.whut.edu.cn/uploadfiles/word/xxdsb08.files/image441.png">
②
<imgwidth="21"height="41"v:shapes="_x0000_i1283"src="http://wljy.whut.edu.cn/uploadfiles/word/xxdsb08.files/image443.png">
③
<imgwidth="21"height="41"v:shapes="_x0000_i1284"src="http://wljy.whut.edu.cn/uploadfiles/word/xxdsb08.files/image445.png">
④
<imgwidth="21"height="41"v:shapes="_x0000_i1285"src="http://wljy.whut.edu.cn/uploadfiles/word/xxdsb08.files/image447.png">
【单选题】
设随机变量<imgwidth="90"height="21"v:shapes="_x0000_i1067"src="http://wljy.whut.edu.cn/uploadfiles/word/xxdsb08.files/image084.png">，则<imgwidth="77"height="21"v:shapes="_x0000_i1068"src="http://wljy.whut.edu.cn/uploadfiles/word/xxdsb08.files/image086.png">（）
①
0.0016
②
0.0272
③
0.4096
④
0.8192
【单选题】
矩阵（）是二次型<imgwidth="112"height="28"v:shapes="_x0000_i1332"src="http://wljy.whut.edu.cn/uploadfiles/word/xxds05.files/image402.png">的矩阵
①
<imgwidth="58"height="58"v:shapes="_x0000_i1333"src="http://wljy.whut.edu.cn/uploadfiles/word/xxds05.files/image404.png">
②
<imgwidth="58"height="58"v:shapes="_x0000_i1334"src="http://wljy.whut.edu.cn/uploadfiles/word/xxds05.files/image406.png">
③
<imgwidth="58"height="58"v:shapes="_x0000_i1335"src="http://wljy.whut.edu.cn/uploadfiles/word/xxds05.files/image408.png">
④
<imgwidth="58"height="58"v:shapes="_x0000_i1336"src="http://wljy.whut.edu.cn/uploadfiles/word/xxds05.files/image410.png">
【单选题】
设<imgwidth="16"height="20"v:shapes="_x0000_i1143"src="http://wljy.whut.edu.cn/uploadfiles/word/xxds05.files/image129.png">是可逆矩阵<imgwidth="18"height="18"v:shapes="_x0000_i1144"src="http://wljy.whut.edu.cn/uploadfiles/word/xxds05.files/image091.png">的一个特征值，则<imgwidth="18"height="18"v:shapes="_x0000_i1145"src="http://wljy.whut.edu.cn/uploadfiles/word/xxds05.files/image091.png">的伴随矩阵<imgwidth="22"height="22"v:shapes="_x0000_i1146"src="http://wljy.whut.edu.cn/uploadfiles/word/xxds05.files/image131.png">必有一个特征值为（）
①
<imgwidth="78"height="48"v:shapes="_x0000_i1147"src="http://wljy.whut.edu.cn/uploadfiles/word/xxds05.files/image133.png">
②
<imgwidth="58"height="48"v:shapes="_x0000_i1148"src="http://wljy.whut.edu.cn/uploadfiles/word/xxds05.files/image135.png">
③
<imgwidth="56"height="20"v:shapes="_x0000_i1149"src="http://wljy.whut.edu.cn/uploadfiles/word/xxds05.files/image137.png">
④
<imgwidth="74"height="32"v:shapes="_x0000_i1150"src="http://wljy.whut.edu.cn/uploadfiles/word/xxds05.files/image139.png">
【单选题】
设随机变量X的方差<imgwidth="144"height="25"v:shapes="_x0000_i1025"src="http://wljy.whut.edu.cn/uploadfiles/word/xxdsb09.files/image002.png">，则X的数学期望<imgwidth="54"height="21"v:shapes="_x0000_i1026"src="http://wljy.whut.edu.cn/uploadfiles/word/xxdsb09.files/image004.png">（）
①
16
②
20
③
4
④
<imgwidth="33"height="25"v:shapes="_x0000_i1027"src="http://wljy.whut.edu.cn/uploadfiles/word/xxdsb09.files/image006.png">