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听力原文:M: Mary, I hope you are packed and ready to leave. W: Yes, I'm packed, but not quite ready. I can't find my passport. M: Your passport? That's the one thing you mustn't leave behind! W: I know. I haven't lost it. I've packed it, but I can't remember which bag it's in. M: Well, you'll have to find it at the airport. Come on! The taxi is waiting. W: Did you say taxi? I thought we were going in your car. M: Yes, well, I had planned to, but I'll explain later. You've got to be there in an hour. W: The plane doesn't leave for two hours. Anyway, I'm ready to go now. M: Now, you are taking just one case, is that right? W: No, there is one in the hall as well. M: Gosh, what a lot of stuff] You are taking enough for a month instead of a week. W: Well, you can't depend on the weather. It might be cold. M: It's never cold in Rome. Certainly not in May. Come on, we really must go. W: Right, we are ready. We've got the bags, I'm sure there is no need to rash. M: There is. I asked the taxi driver to wait two minutes, not twenty! W: Look, I'm supposed to be going away to relax. You are making me nervous! M: Well, I want you to relax on holidays, but you can't relax yet. W: OK, I promise not to relax, at least not until we get to the airport and I find my passport. (23)
A.
She has packed it in one of her bags.
B.
She is going to get it at the airport.
C.
She has probably left it in a taxi.
D.
She is afraid that she has lost it.
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【判断题】连续型随机变量X的概率密度f(x)与其分布函数F(x)相互唯一确定。
A.
正确
B.
错误
【单选题】使用 STD_LOGIG_1164 使用的数据类型时
A.
可以直接调用
B.
必须在库和包集合中声明
C.
必须在实体中声明
D.
必须在结构体中声明
【单选题】下列关于卷材接缝采用焊接法施工的说法中,错误的是()
A.
焊接前卷材应铺放平整,搭接尺寸准确
B.
、焊接前应先焊接短边搭接缝,后焊接长边搭接缝
C.
焊接处不得漏焊、跳焊或焊接不牢
D.
焊接时不得损害非焊接部位的卷材
【单选题】使用 STD_LOGIG_1164 使用的数据类型时 。
A.
必须对库和包进行声明
B.
可以直接调用
C.
必须在实体中声明
D.
必须在结构体中声明
【单选题】基于产品或服务满足了顾客个性化需求而形成的忠诚是指
A.
顾客忠诚
B.
认知忠诚
C.
情感忠诚
D.
行为忠诚
【判断题】连续型随机变量的概率密度函数f(x)与其分布函数F(x)相互唯一确定
A.
正确
B.
错误
【单选题】使用 STD_LOGIG 的数据类型时( )
A.
可以直接调用
B.
必须在库中声明
C.
必须在实体中声明
D.
必须在结构体中声明
【单选题】基于产品或服务满足了顾客的个性化需求而形成的忠诚,是指()
A.
顾客忠诚
B.
认知忠诚
C.
情感忠诚
D.
行为忠诚
【单选题】使用 STD_LOGIG_1164 使用的数据类型时 。
A.
可以直接调用
B.
必须在库和程序包中声明
C.
必须在实体中声明
D.
必须在结构体中声明
【多选题】ping命令执行中如果显示Request time out,则表示()
A.
规定时间内,因某种原因没有返回ping命令的应答
B.
有可能对方计算机没有运行
C.
通信双方之间线路故障
D.
通信质量不稳定致使信息不能及时应答
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