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【单选题】
已知函数y= x 3 +x 2 +x的图像C上存在一定点P满足：若过点p的直线l与曲线C交于不同于P的两点M(x 1 ，y 1 )，N(x 2 ，y 2 )，就恒有y 1 +y 2 为y 0 ，则y 0 的值为(    )
A.
-
B.
-
C.
-
D.
-2
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参考答案：
举一反三
【简答题】简述蛛网膜下腔出血再出血的防治。
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【单选题】犬（ ）猫は机の下にいます。
A.
は
B.
が
C.
の
D.
と
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【单选题】下列哪组细胞间相互作用时不受MHC限制
A.
NK细胞与肿瘤细胞
B.
CD8 + CTL细胞与肿瘤细胞
C.
Th细胞与B细胞
D.
巨噬细胞与Th细胞
E.
树突状细胞与Th细胞
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【判断题】炉前燃油系统因检修需要动火时,运行人员只要做好安全措施,不需办理动火工作票。
A.
正确
B.
错误
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【单选题】听力原文：M: I met Sam on the street today. W: Really? Did he say something about his sister? M: Yes. She ought to be leaving New York very soon, because her husband has taken a job in Los Angeles. What do...
A.
His sister will leave for New York.
B.
His sister will leave for Los Angeles.
C.
He will leave New York.
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【单选题】利用Proquest central数据库,在艺术领域下,使用出版物检索,检索期刊Academy of Educational Leadership Journal的出版商是( )。
A.
Jordan Whitney Enterprises, Inc
B.
American Association of University Professors
C.
Tucker Publications, Inc.
D.
Australian Associated Press Pty Limited
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【单选题】利用Proquest central数据库,在科学与技术领域下,使用高级检索,检索2012年标题中含有短语”无线通信”(wireless communication)且提供全文的文献一共有( )篇。
A.
2370
B.
4163
C.
3549
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【单选题】甲、乙各交给丙3000元,委托丙为其购买录像机。丙又将该款转交给丁,委托丁代为购买,但未通知甲、乙。后因甲、乙长时间未见到委托丙买的录像机,遂询问丙,丙告知已托丁购买,但现丁不知下落。甲、乙表示不再购买,要求丙还款。丙拒绝还款,让甲、乙向丁索要。甲、乙交付给丙的3000元,应当( A )
A.
由丙偿还
B.
由丁偿还
C.
由丙、丁共同偿还
D.
不由丙偿还，也不由丁偿还
查看完整题目与答案
【简答题】阅读理解 Today, we complete our story about the influential English writer William Shakespeare. He wrote plays and poems during the late fifth and early sixth centuries, which remain very popular ...
查看完整题目与答案
【简答题】阅读理解 Today, we complete our story about the influential English writer William Shakespeare. He wrote plays and poems during the late fifth and early sixth centuries, which remain very popular ...
查看完整题目与答案
相关题目：
【简答题】简述蛛网膜下腔出血再出血的防治。
查看完整题目与答案
【单选题】犬（ ）猫は机の下にいます。
A.
は
B.
が
C.
の
D.
と
查看完整题目与答案
【单选题】下列哪组细胞间相互作用时不受MHC限制
A.
NK细胞与肿瘤细胞
B.
CD8 + CTL细胞与肿瘤细胞
C.
Th细胞与B细胞
D.
巨噬细胞与Th细胞
E.
树突状细胞与Th细胞
查看完整题目与答案
【判断题】炉前燃油系统因检修需要动火时,运行人员只要做好安全措施,不需办理动火工作票。
A.
正确
B.
错误
查看完整题目与答案
【单选题】听力原文：M: I met Sam on the street today. W: Really? Did he say something about his sister? M: Yes. She ought to be leaving New York very soon, because her husband has taken a job in Los Angeles. What do...
A.
His sister will leave for New York.
B.
His sister will leave for Los Angeles.
C.
He will leave New York.
查看完整题目与答案
【单选题】利用Proquest central数据库,在艺术领域下,使用出版物检索,检索期刊Academy of Educational Leadership Journal的出版商是( )。
A.
Jordan Whitney Enterprises, Inc
B.
American Association of University Professors
C.
Tucker Publications, Inc.
D.
Australian Associated Press Pty Limited
查看完整题目与答案
【单选题】利用Proquest central数据库,在科学与技术领域下,使用高级检索,检索2012年标题中含有短语”无线通信”(wireless communication)且提供全文的文献一共有( )篇。
A.
2370
B.
4163
C.
3549
查看完整题目与答案
【单选题】甲、乙各交给丙3000元,委托丙为其购买录像机。丙又将该款转交给丁,委托丁代为购买,但未通知甲、乙。后因甲、乙长时间未见到委托丙买的录像机,遂询问丙,丙告知已托丁购买,但现丁不知下落。甲、乙表示不再购买,要求丙还款。丙拒绝还款,让甲、乙向丁索要。甲、乙交付给丙的3000元,应当( A )
A.
由丙偿还
B.
由丁偿还
C.
由丙、丁共同偿还
D.
不由丙偿还，也不由丁偿还
查看完整题目与答案
【简答题】阅读理解 Today, we complete our story about the influential English writer William Shakespeare. He wrote plays and poems during the late fifth and early sixth centuries, which remain very popular ...
查看完整题目与答案
【简答题】阅读理解 Today, we complete our story about the influential English writer William Shakespeare. He wrote plays and poems during the late fifth and early sixth centuries, which remain very popular ...
查看完整题目与答案
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