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【简答题】
乙两人独立地各进行两次射击,的命中率为0.4,乙的命中率为0.5,以X,Y分别表示甲和乙的命中次数,试求X,Y的联合分布律。
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【简答题】密实类沥青路面的强度主要由 构成,其次是由 构成。
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【多选题】The tall man who is standing over there is my brother. 2. She was not on the train which arrived just now. 3. The man speaking to us the other day has gone to Japan. 4. This report was said to have be...
A.
站在那里的高个子是我的兄弟。
B.
她不在刚才到达的那列火车上。
C.
那天同我们讲话的那个人到日本去了。
D.
这个报告据说是由几个勤奋的医学专业大学生作的。
E.
这条街道尽头的那座建筑物是一家旅馆。
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【简答题】A．He is not cooperative. B．He will be in his office all afternoon. C．He has not read any of the articles himself. D．He already brought in extra copies of the articles.
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【单选题】个人身体生长发育的第二高峰期是（ ）。
A.
童年期
B.
少年期
C.
青春期
D.
青年期
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【单选题】Which of the following was NOT the reason for the relative economic decline since 1945?
A.
Britain did not invest in modern equipment and new products.
B.
Britain spent a high proportion of its national wealth on the military.
C.
Britain had been heavily in debt to finance the war.
D.
Britain had carried out the nationalisation of the businesses.
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【判断题】在同一个系统中不同的元件发生变化,系统所具有的干扰度不同。
A.
正确
B.
错误
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【简答题】which figure of speech(修辞格) is used in the following sentence? 1. Mr. Houghton was not the only one with an irresistible spring in his neck. 2. If we were counting heads, the Buddhists were the boys f...
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【单选题】Whenever he thinks about his mistakes that cannot be _________ he will be very uneasy.
A.
identified
B.
justified
C.
rectified
D.
modified
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【简答题】Read each dialog and choose the correct answer. 1. Which sentence is not talking about the future? A. Paul is going to China next year. B. I’ve been exercising a lot lately. C. We will be at the party...
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【单选题】从20世纪80年代末到90年代初，在5年时间内中科院7个研究所和北京大学共有134名在职人员死亡。有人搜集这一数据后得出结论：中关村知识分子的平均死亡年龄为53.34岁，低于北京市1990年人均期望寿命?3岁，比10年前调查的58.52岁也低了5.18岁。下面哪一项最准确地指出了该统计推理的谬误?
A.
实际情况是143名在职人员死亡，样本数据不可靠。
B.
样本规模过小，应加上中关村其他科研机构和大学在职人员死亡情况的资料。
C.
这相当于在调查大学生平均死亡年龄是22岁后，得出惊人结论：具有大学文化程度的人比其他人平均寿命少50岁。
D.
该统计推理没有在中关村知识分子中间作类型区分。
查看完整题目与答案
相关题目：
【简答题】密实类沥青路面的强度主要由 构成,其次是由 构成。
查看完整题目与答案
【多选题】The tall man who is standing over there is my brother. 2. She was not on the train which arrived just now. 3. The man speaking to us the other day has gone to Japan. 4. This report was said to have be...
A.
站在那里的高个子是我的兄弟。
B.
她不在刚才到达的那列火车上。
C.
那天同我们讲话的那个人到日本去了。
D.
这个报告据说是由几个勤奋的医学专业大学生作的。
E.
这条街道尽头的那座建筑物是一家旅馆。
查看完整题目与答案
【简答题】A．He is not cooperative. B．He will be in his office all afternoon. C．He has not read any of the articles himself. D．He already brought in extra copies of the articles.
查看完整题目与答案
【单选题】个人身体生长发育的第二高峰期是（ ）。
A.
童年期
B.
少年期
C.
青春期
D.
青年期
查看完整题目与答案
【单选题】Which of the following was NOT the reason for the relative economic decline since 1945?
A.
Britain did not invest in modern equipment and new products.
B.
Britain spent a high proportion of its national wealth on the military.
C.
Britain had been heavily in debt to finance the war.
D.
Britain had carried out the nationalisation of the businesses.
查看完整题目与答案
【判断题】在同一个系统中不同的元件发生变化,系统所具有的干扰度不同。
A.
正确
B.
错误
查看完整题目与答案
【简答题】which figure of speech(修辞格) is used in the following sentence? 1. Mr. Houghton was not the only one with an irresistible spring in his neck. 2. If we were counting heads, the Buddhists were the boys f...
查看完整题目与答案
【单选题】Whenever he thinks about his mistakes that cannot be _________ he will be very uneasy.
A.
identified
B.
justified
C.
rectified
D.
modified
查看完整题目与答案
【简答题】Read each dialog and choose the correct answer. 1. Which sentence is not talking about the future? A. Paul is going to China next year. B. I’ve been exercising a lot lately. C. We will be at the party...
查看完整题目与答案
【单选题】从20世纪80年代末到90年代初，在5年时间内中科院7个研究所和北京大学共有134名在职人员死亡。有人搜集这一数据后得出结论：中关村知识分子的平均死亡年龄为53.34岁，低于北京市1990年人均期望寿命?3岁，比10年前调查的58.52岁也低了5.18岁。下面哪一项最准确地指出了该统计推理的谬误?
A.
实际情况是143名在职人员死亡，样本数据不可靠。
B.
样本规模过小，应加上中关村其他科研机构和大学在职人员死亡情况的资料。
C.
这相当于在调查大学生平均死亡年龄是22岁后，得出惊人结论：具有大学文化程度的人比其他人平均寿命少50岁。
D.
该统计推理没有在中关村知识分子中间作类型区分。
查看完整题目与答案