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听力原文:Man: Hello, Elizabeth. How are you? Woman: Fine, thanks. Man: Are you sure you are all right? You look a bit worried today. Is there anything wrong? Woman: Well, yes, there is something wrong actually. Perhaps you can give me some advice. Man: Of course, if I can. Woman: Well, last night when I returned from the theatre, I found that I'd lost my wallet. Man: Oh, dear! That's terrible! What was in your wallet? Woman: Well, some money, of course, my visa, all my identity cards and some photos. Man: Well, if I were you, I'd go to the police station straight away and report it. Woman: Yes, I've already done that, and they said that they'd make a search for it. But we're leaving soon and I need my visa and identity cards badly. Man: Oh, dear! What a pity! Are you sure you lost the wallet in the theatre? Woman: Yes, quite sure. Man: I think you should put an advertisement in the China Dally, saying when and where you lost it. Woman: But that takes too long. Man: Walt a minute! I know! How stupid of me. My uncle lives in Beijing and he lives very close to the theatre. I'll telephone him and ask him to go there. You'd better go and have breakfast and I'll meet you later. Woman: Oh, thank you. That's marvelous. I hope he finds it. (20)
A.
She had lost her wallet.
B.
She was lost and couldn't find her way back to her hotel.
C.
She didn't know where she had lost her identity card.
D.
She didn't know the way to the theatre.
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参考答案:
举一反三
【单选题】设服从[0,1]上的均匀分布, 则( )。
A.
服从[ 1,1]上的均匀分布
B.
服从[0,1]上的均匀分布
C.
的密度函数
D.
在 上服从均匀分布
【单选题】测试放大电路输出电压幅值与相位的变化,可以得到它的频率响应,条件是
A.
输入电压幅值不变,改变频率
B.
输入电压频率不变,改变幅值
C.
输入电压的幅值与频率同时变化
D.
输入电压的幅值与频率都不变
【单选题】设X,Y相互独立且均服从[0,1]上的均匀分布,则服从区间或区域上的均匀分布的随机变量是( )
A.
(X,Y)
B.
X+Y
C.
D.
X-Y
【单选题】6 5.I'm pleased to tell you that the fax machines you ordered are ______ now.
A.
available
B.
convenient
C.
wonderful
D.
important
【单选题】I'm pleased to tell you that the machine you ordered are now.
A.
convenient
B.
wonderful
C.
available
D.
important
【单选题】I'm pleased to tell you that the fax machines you ordered are _______ now.
A.
available
B.
convenient
C.
wonderful
D.
important
【单选题】I'm pleased to tell you that the fax machines you ordered are _________.
A.
available
B.
wonderful
C.
convenient
D.
important
【单选题】I'm pleased to tell you that the fax machines you ordered are _______ now.
A.
available
B.
convenient
C.
wonderful
D.
important
【单选题】I'm pleased to tell you that the fax machines you ordered are ________ now.
A.
available
B.
convenient
C.
Wonderful
D.
important
【单选题】两等宽的圆柱体接触,其直径的d1=2d2,弹性模量E1=2E2,则其接触应力值为( )。
A.
σH1 = σH2
B.
σH1 =2 σH2
C.
σH1 =4 σH2
D.
σH1 =8 σH2
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