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听力原文:M: What do you think of the campus Network? W: I think it still needs further improvements it was only set up a few months ago. M: I think it's a fantastic idea to have every department's computers connected. But it's a pity you can only access the China Education and Research Network within the campus Network. You can't visit some domestic websites, not to mention the international ones. W: You are right. But with your own desktop and a modem, you won't have this problem. M: Then you will have another problem. The connection speed sometimes slows to a trickle and it really puts users in a pickle. W: Come on, you have to face it, the number of netizens, I mean, the Internet surfers, is growing so fast in China. There is good news, though. Some telecom departments have started increasing the bandwidth of Internet connection, so the transmission is expected to speed up at the end of this year. M: Wow, I think it's not only good news for the average Internet surfer, but also wonderful for online education in China. W: Yeah, with online education, the long-distance education in China will expand a lot. Students, used to studying radio or television programs, now can have another alternative. M: For many people who can not study on a fixed schedule, online education should suit them best. W: Oh, sure. Online education gives students enough flexibility, and what's more important, their studies are entirely interactive. You turn in your homework and then get the teacher's comments in no time. M: I hope China can set up more net colleges anyone who can not study in a traditional college can thus have access to higher education. W: It's not a hope but already reality now. That's why some people say the Internet is an equalizer. It allows people access information more readily, thus narrowing the gap between the haves and the have nots. (20)
A.
Workers.
B.
Students.
C.
Engineers.
D.
Businessmen.
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【简答题】设X=C 1 [a,b],即为[a,b]上所有连续可微函数空间。对x∈Y,令 ‖x‖=‖x‖ ∞ +‖x'‖ ∞ ‖x‖ 1 =|x(a)|+‖x'‖ ∞ , 其中x'是x导数。证明X赋有上面任一个范数都是Banach空间。再证明对X中所有x, ‖x‖ 1 ≤‖x‖≤(b-a+1)‖x‖ 1 , 且常数b=a+1是最佳的。
【简答题】设m为,X为所有[a,b]上的纯量函数x,使得x的m-1阶导数x (m-1) 在[a,b]上为绝对连续的且x的m阶导数x (m) 属于L 2 [a,b]。若x,y∈X,令 求证: (a)上式定义了X上的一个内积且在这个内积意义下X为Hilbert空间。 (b)C m [a,b]在X为稠密的。
【简答题】等待救援,保持冷静。切忌慌张或跳楼。 Wait to be rescued. Remain calm. Don’t _______ or jump.
【单选题】How do you know when to call for help? According to experts, the key in any emergency is to remain calm, know what to do, and make a decision to act.
A.
你怎么知道什么时候要呼救呢?据专家们说,在任何紧急情况下,关键是保持冷静,知道该怎么办并决定行动。
B.
据专家们说,在任何紧急情况下,你怎么知道什么时候要呼救呢?关键是保持冷静,知道该怎么办并决定行动。
【简答题】在 298K 时反应 N2O4 ( g ) =2NO2 (g) 的 Kθ =0.1132 ,当 p(N2O4)= p(NO2)=100kPa 时反应将向 ________ 移动。当 p(N2O4)=10kPa , p(NO2)=1kPa 时,反应将向 _________ 移动。
【简答题】论述沃尔多对传统公共行政的批判及其公共行政思想。
【简答题】remain _________ 保持冷静,保持镇静
【简答题】在298K时反应N 2 O 4 (g)=2NO 2 (g)的 =0.1132,当 p (N 2 O 4 )= p (NO 2 )=1kPa时反应 将向 移动。当 p (N 2 O 4 )=10kPa, p (NO 2 )=1kPa时,反应将向 移动。
【简答题】论述沃尔多对传统公共行政的批判及其公共行政思想。
【简答题】设X=C"[a,b],即为[a,b]上具有n阶连续导数的纯量函数的集合。对X中的x,令 其中x (0) =x且x (m) 是x的m阶导数(m=1,2,…,n)。令Y是X中的所有无穷次可微函数的集合。证明X是Banach空间,在诱导范数下Y不是Banach空间。
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