It was really _________ of you to provide such a comprehensive plan.
A. grateful
B. deceitful
C. thoughtful
D. faithful
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Contrary to what some correspondents think, it doesn’t _________ the unemployment rate.
A. have anything to do with
B. have something to do with
C. have nothing to do with
D. have many things to do with
We live in a digital age. It is becoming cheaper and truly more convenient for us to get connected to the Internet anytime and anywhere.Over the years(1)_________technological advances have made it possible to introduce new means of communication and expression. In the past, we went(2)_________through browsers on our fixed line-connected PC and put ourselves at the receiving end for information. In today’s fast-paced life, we find ourselves no longer(3)_________the Web nearly as much anymore. There is an increasing trend that we get in touch with friends more easily through mobile devices with built-in Wi-Fi features such as smartphones and tablet computers.(4)_________the first stage of the Web development, social(5)_________on mobile devices operate under a dialogic model, which is different from the traditional one. The mobile apps available help to manage new types of online activities. They allow individuals, communities and organizations to actively create and(6)_________content online. They also allow us to(7)_________with one another by sharing details about our lives, photos and thoughts. Examples of such new media include blogs, wikis and social networks.However, social media have been(8)_________for issues with reliability of information presented when there are no proper rules(9)_________to online behavior. Compared with information from traditional media, particularly books, trust in information from social media sources is low. In the(10)_________of firm evidence, some people even go so far as to use social media to quickly spread misinformation, lies and rumors.A.absence B. amazingC. criticized D. DespiteE. interactF.mediaG. nourish H. onlineI. promisingJ. publishK. RelatedL. surfingM. uniqueN. Unlike O. urged
The 2-D DFT can be computed by computing 1-D DFT transforms along the rows of the image, followed by 1-D transforms along the columns of the result.
A. 对
B. 错
The Fourier transform of a real function is conjugate symmetric, which implies that the spectrum has even symmetry about the origin.
A. 对
B. 错