如图所示,置于匀强磁场中的金属圆盘中央和边缘各引出一根导线,与套在铁芯上部的线圈A相连。套在铁芯下部的线圈B引出两根导线接在两根水平导轨上。导轨上有一根金属棒ab处在垂直于纸面向外的匀强磁场中。下列说法正确的是( )
Tan has reached these limits, and, nurtured on the best of the West, he felt this immense potentiality in Mediterranean painting, which describes a reality or an imagination tirelessly retouched, to be more exemplary than the truth or thought. tanswiehian.sg 瑞献已触及那局限,而且,在饱受西方...
根据最后一段中的“Learning the Dewey Decimal System...in a funny way.”可知,杜威十进制系统如果可以以一种有趣的方式呈现的话,或许就有意思了。由此可推知,杜威十进制系统应是无聊的。 相关知识点: 试题来源: 解析 B 解析:推理判断题。根据最后一段中的 “ Learning the Dewey Decimal System...in ...
句意:“ate”在单词“affectionate”中最好可以描述成什么?题干中-ate是affectionate的后缀,改变单词的词类(词性),是派生词素,A项:derivationalmorpheme派生词素:改变意思或者词类的词素,粗略的可以理解为单词的前后缀。A项正确。B项:inflectionalmorpheme屈折词素:起语法作用的词素,例如:名词单复数、所有格,动词的时态,...
( )4. Which of the following best describes() the app? 相关知识点: 试题来源: 解析 A【答案】A【核心短语/词汇】describe 描述【翻译】下面哪一个最好地描述了这个应用软件?【解析】A. 简单的;B. 困难的;C. 有趣的;D. 无聊的。根据上文的“even a five-year-old child can use it(甚至一个...
Which embryo cells are determined, just when do they become irreversibly committed to their fates, and what are the “morphogenetic determinants” that tell a cell what to become? But the debate could not be resolved because no one was able to ask the crucial questions in a form in which ...
百度试题 结果1 题目【题目】【题目】Which of the following best describes _ 【题目】【题目】【题目】【题目】 相关知识点: 试题来源: 解析 【解析】 【解析】 反馈 收藏
解析:A正确。数字签名是使用发送者的私钥加密了的散列值。数字签名的行为就是用私钥对消息的散列值进行加密。如果Sam想确保他发送给Debbie的消息不被修改,并且希望Debbie相信这个消息只是来自于他自己,那么他就可以对这个消息进行数字签名。这就意味着对该消息先进行单向散列函数算法,然后Sam用他的私钥对这个散列值进行...
Which of the following best describes the function of the concluding sentence of the passage? A. It sums up the general points concerning the mechanization of work made in the passage as a whole. B. It restates the point concerning technology made in the sentence immediately preceding it. C...
D. Economical.【小题2】What do the new technology and the traditional way have in common? E. They test the fish's mucus to tell them apart. F. They are carried out by researchers in the lab. G. They help researchers tell different salmons apart. . They aim at better protecting ...