【判断题】【消耗次数：1】
职工应当参加工伤保险，由用人单位和职工共同缴纳工伤保险费。
①
正确
②
错误
参考答案：
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相关题目
【单选题】
关于缴纳保险费的责任，（）规定：用人单位应当按时缴纳工伤保险费。职工个人不缴纳工伤保险费。
①
A.《劳动法》
②
B.《安全生产法》
③
C.《社会保险法》
④
D.《工伤保险条例》
随机题目
【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">
【单选题】
随机变量<imgwidth="13"height="21"v:shapes="_x0000_i1042"src="http://wljy.whut.edu.cn/uploadfiles/word/xxdsb08.files/image036.png">的概率密度<imgwidth="132"height="50"v:shapes="_x0000_i1043"src="http://wljy.whut.edu.cn/uploadfiles/word/xxdsb08.files/image038.png">则常数<imgwidth="29"height="19"v:shapes="_x0000_i1044"src="http://wljy.whut.edu.cn/uploadfiles/word/xxdsb08.files/image040.png">（）
①
1
②
2
③
<imgwidth="17"height="41"v:shapes="_x0000_i1045"src="http://wljy.whut.edu.cn/uploadfiles/word/xxdsb08.files/image042.png">
④
<imgwidth="17"height="41"v:shapes="_x0000_i1046"src="http://wljy.whut.edu.cn/uploadfiles/word/xxdsb08.files/image044.png">
【单选题】
非齐次线性方程组<imgwidth="186"height="58"v:shapes="_x0000_i1165"src="http://wljy.whut.edu.cn/uploadfiles/word/xxds04.files/image192.png">有解的充要条件是（）
①
<imgwidth="52"height="48"v:shapes="_x0000_i1166"src="http://wljy.whut.edu.cn/uploadfiles/word/xxds04.files/image194.png">
②
<imgwidth="52"height="48"v:shapes="_x0000_i1167"src="http://wljy.whut.edu.cn/uploadfiles/word/xxds04.files/image196.png">
③
难确定
④
<imgwidth="14"height="20"v:shapes="_x0000_i1168"src="http://wljy.whut.edu.cn/uploadfiles/word/xxds04.files/image198.png">任意非零实数
【单选题】
<imgwidth="210"height="114"v:shapes="图片_x0020_8"src="http://wljy.whut.edu.cn/uploadfiles/word/xxds01.files/image008.png">
①
<imgwidth="59"height="28"v:shapes="图片_x0020_9"src="http://wljy.whut.edu.cn/uploadfiles/word/xxds01.files/image009.png">
②
<imgwidth="77"height="40"v:shapes="图片_x0020_10"src="http://wljy.whut.edu.cn/uploadfiles/word/xxds01.files/image010.png">
③
<imgwidth="57"height="37"v:shapes="图片_x0020_11"src="http://wljy.whut.edu.cn/uploadfiles/word/xxds01.files/image011.png">
④
<imgwidth="40"height="38"v:shapes="图片_x0020_12"src="http://wljy.whut.edu.cn/uploadfiles/word/xxds01.files/image012.png">