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【简答题】
Each sentence tells the main idea of a paragraph in “Making Money.” Read each sentence, then write the correct paragraph number next to it.
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【简答题】How men first learned to invent words is unknown, in other words, the origin of language is a mystery. All we really know is that men, unlike animals, somehow invented certain sounds to express though...
【简答题】For travelers with a sense of adventure and who so want to experience some of the history and mystery of the ancient world, here is a list of cool destinations that you may want to consider for your n...
【单选题】The theory about a Snowball Earth is significant in that it can ______.
A.
decode the mystery of life
B.
predict the formation of a new supercontinent
C.
adjust the planet's climate
D.
prevent another Snowball Earth from happening
【简答题】抛物线 的准线方程为____。 抛物线 的准线方程____。 抛物线 的准线方程为____。
【单选题】??The "landing strips for aircraft"(in Paragraph 2) were really______??
A.
mysterious archaeological spectacles
B.
balloon landing places
C.
deserted airports
D.
ground-drawings on a vast scale
【单选题】There is a mystery about his death and the police are_____it.
A.
looking for
B.
looking into
C.
looking after
D.
looking over
【多选题】关于信息安全防护技术,以下表述正确的是
A.
隐私保护是指通过技术或法律手段对个人或组织的信息进行保护使其不被泄露。
B.
访问控制包括认证、授权、文件保护和审计。
C.
消息摘要技术可以保证消息的真实性和不可否认性。
D.
消息摘要和数字签名都以密码技术为基础。
【多选题】关于信息安全防护技术，以下表述正确的是
A.
消息摘要和数字签名都以密码技术为基础。
B.
消息摘要技术可以保证消息的真实性和不可否认性。
C.
访问控制包括认证、授权、文件保护和审计。
D.
隐私保护是指通过技术或法律手段对个人或组织的信息进行保护使其不被泄露。
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