【单选题】“蓬生麻中,不扶而直;白沙在涅,与之俱黑”反映了()对人的发展所起到的重要作用
【单选题】下列项目中属于非流动负债项目的是( )。
【简答题】Phil and Morgan are talking about learning a second language. Listen to their conversation, and then answer the questions by choosing the best answer. Getting to know the following useful language fir...
【多选题】下列选项中,随产量而而变化的成本有( )。
【单选题】Children are usually_______by grammatical explanations, when they are learning a second language.
【单选题】“蓬生麻中,不扶而直,白沙在涅,与之俱黑”。这句话反映了下列哪种因素对人的发展的影响( )
【单选题】以下关于加密的描述中,错误的是(17)。
B.
加密过程是利用密钥和加密算法将明文转换成密文的过程
C.
选择密钥和加密算法的原则是保证密文不可能被破解
D.
加密技术通常分为非对称密钥加密技术和对称密钥加密技术
【单选题】听力原文:M: I hate memorizing vocabulary. W: Well, it's part of learning a second language. If you want to master the language, it is a must. What does the woman tell the man?
A.
He has to do what is necessary in order to learn.
B.
He doesn't have to memorize all the vocabulary.
C.
There is not much he can learn by memorizing.
D.
He knows the whole vocabulary list already.
【单选题】● 下面关于加密的说法中,错误的是 (5) 。 (5)
B.
加密过程是利用密钥和加密算法将明文转换成密文的过程
C.
选择密钥和加密算法的原则是保证密文不可能被破解
D.
加密技术通常分为非对称加密技术和对称密钥加密技术