在变容二极管电路中，中心频率fC为5MHz，调制信号频率为5kHz，最大频偏为2kHz。通过三倍频后，调频系数……

未分类题According to the author, policies adopted by most countries are bad in thatA．they actually force citizens to donate organs.B．the presumed consent is not morally right.C．they fail to increase supply to an expected level.D．people donate organs because it is voluntary.

未分类题Schools considered using summer time most probably because theyA．wanted to help students to make full use of the school calendar.B．disbelieved that their students would actively do summer homework.C．would like to encourage more students to take Advanced Placement tests.D．thought achievements had something to do with efforts in summertime.

判断题评价结果要客观可靠，追求评价的客观性是现代教育评价的基本特点。评价包括描述和价值判断。()

未分类题Peter Singer seems to suggest thatA．we should cast away our logic and respect emotion in the first place.B．we should not only concern about ourselves but start help each other.C．people who live in abundance should give a hand to those in poverty.D．we should cut off life support for the old to achieve the utilitarian goals.

判断题每一个D、FA都对应有唯一的一个NFA。()

未分类题The difference between modern cell phones and old phones lies in thatA．it requires more intelligence and education to use modem cell phones.B．it takes more weeks to get familiar with modem cell phones.C．modem cell phones are more complicated with many functions.D．modem cell phones are more mysterious tools for people.

未分类题The researches held by Motorola showed that the textually illiterate villagersA．were willing to use old machines with little functions.B．had to take some lessons to learn the new functions.C．could remember the major function of each button.D．would avoid reading the hierarchy menus of the machine.

判断题两个正规式等价，当且仅当它们所描述的正规集相同。()

未分类题Fogg believes that the future mobile phones could notA．teach illiterates to learn alphabets.B．understand the user's ideas and points.C．help users exercise their languages.D．become more direct and elegant.

未分类题It is stated in Paragraph 4 that those who support pushing the bystander to stop the trolleyA．are brutal and relentless.B．display the same emotional aversion.C．feel guilty about doing that.D．have struggled to make the decision.

未分类题It can be inferred from the text that the reason for building a continuous span is thatA．the construction was dangerous because of severe weather.B．the engineers wanted to build the longest suspension bridge.C．building a floating tunnel or a series of bridges was impossible.D．ferry boats covered too many pointless miles and wasted time.

未分类题From the first two paragraphs, we can learn thatA．moral 'reasoning' is actually based on reason, not on emotion.B．philosophers have resolved the dilemma between reason and emotion.C．emotion plays a more important role than reason in moral judgment.D．most philosophers pursue the utilitarian goal in the trolley problem.

判断题源程序中的每个变量有两种重要的属性，一是在数据区给它们分配的存储单元地址，二是在目标程序运行时存放在相应单元中的值。()

未分类题It can be inferred from the second paragraph thatA．Google's new service is going to be a smashing success.B．people are helplessly obsessed with the Digitalized Dante.C．opinions vary towards free downloading of online books.D．people embrace the idea of making books online for free download.

判断题邻接矩阵适用于有向图和无向图的存储，但不能存储带权的有向图和无向图，而只能使用邻接表存储形式来存储它。()