设A是三阶方阵,且|A+E|=|A-2E|=|2A+3E|=0,则|A+4E|=__

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问题:

设A是三阶方阵,且|A+E|=|A-2E|=|2A+3E|=0,则|A+4E|=______.

考点:普通考研考研数学(二)考研数学二
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汽车由北京驶往相距120千米的天津,它的平均速度是30千米/时,则汽车距天津的路程S(千米)与行驶时间t(时)的函数关系及自变量的取值范围是(  )
A.S=120-30t(0≤t≤4)B.S=30t(0≤t≤4)
C.S=120-30t(t>0)D.S=30t(t=4)
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根据布雷纳的观点,下列关于农村的阶级斗争说法正确的是()。

A、农村的阶级斗争推动了资本主义的发展

B、农村的阶级斗争并没有改变农村的制度

C、农村的阶级斗争因为黑死病强度大大减弱

D、农村的阶级斗争没有推动资本主义的发展

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杂货集装箱的使用范围极其广泛,占全部集装箱总数的7O%~80%。

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逻辑思维方法建立在逻辑推理的基础上,根据已知情报运用()等一系列逻辑思维过程,揭示研究对象的本质、发展规律和因果关系,是涉烟情报分析的基础的思维方法。

A、分析与综合

B、演绎与归纳

C、抽象与概括

D、相关与比较

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Blair Admits Never Having Sent Flowers to His Wife


British Prime Minister Tony Blair admitted on a television programme that he has never sent flowers to his wife Cherie and that he had a youthful crush on Hollywood beauty Grace Kelly.
Blair, who allowed Channel 4 interviewer June Sarpong to shadow him for two days last month, made other personal (1) when asked questions he rarely hears on the usual television political (2) .
During the interviews for a program targeting 18-30 year (3) , the prime minister admitted he sometimes has to "wing it" when (4) public appearances and that he yearns to go out for a drink (5) being recognised.
However, the most dramatic revelation was his reply to Sarpong’s (6) on whether he still sends his wife flowers, prompting his interviewer to (7) in disbelief. "I’ve never sent her flowers. If I sent her flowers, she would (8) worried," Blair said.
But he added: "I am romantic. There are other ways of (9) romantic."
Blair needed a few moments to recall which posters he had (10) his bedroom wall as a youngster, then revealed: "I’ll tell you... actually, (11) I was younger, I loved Grace Kelly."
Born in 1929, Kelly (12) in films like ’Dial M For Murder’, ’Rear Window’ and ’High Society’ in the mid-1950s, but (13) acting to marry Prince Rainier of Monaco in 1956, when Blair was (14) two years old.
Blair admitted he initially found it "odd" to be (15) minister and to be rushed in motorcades from appointment to (16) , and worried that his lifesty left him "a bit isolated" from (17) people.
He admitted that he was constantly on the phone between public (18) , and rarely had time to prepare for his next (19) , telling Sarpong: "I wing it all the time."
And he revealed he has to check himself before he replies to (20) questions from the public. "The worst thing is when someone is giving you a real earful and you think ’I’m going to say something I will regret’," he said.
Asked what he would do if he could be invisible for a day, Blair yearned for a more ordinary life, saying he would "just walk down the street and go to the pub... just be absolutely normal".

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