皮皮学,免费搜题
登录
搜题
【简答题】
Always forgetting your long passwords(密码)? Worried about being hacked(被攻击)?All these worries will soon become history. Scientists have found that upper-casing(大写)your password can help you reduce the chance being hacked. Usually passwords are six letters or more.However,50 percent of people choose a common word or simple key combination for their password. The most used passwords are 123456, abcdef and abc123. In fact, if your passwords are in lower-case(小写),it will be easily hacked by a hacker. According to a study, it only takes a hacker ten minutes to hack a six-letter password which is in lower-case, but if you make the letter in upper-case, it can take up to ten hours. So if you want to make your account much safer, you should make your password upper-case. Of course, you can also add numbers or symbols to your password. Most of the time a hacker’s computer has to work for 18 days to break a password, but if you choose a nine-letter password that includes numbers and symbols, it can take a hacher’s  computer 44,530 years to break it. 小题1:Scientists have found that your password is much safer for your account. A.upper-casing B.lower-casing C.reducing D.copying 小题2:According to the passage, ______ is not one of the most used passwords. A.123456 B.abcdef C.abc123 D.000000 小题3:It takes a hacker___to hack a six-letter password which is in lower—case. A.10 minutes B.10 hours C.18 days D.44,530 years 小题4:The Chinese meaning of the underlined word is A.数字     B.符号      C.色彩       调料 小题5:What is the main idea of the passage? A.What passwords are. B.How a password is hacked. C.How to make your password much safer. D.Why hackers hack your password.
拍照语音搜题,微信中搜索"皮皮学"使用
参考答案:
参考解析:
知识点:
.
..
皮皮学刷刷变学霸
举一反三
【单选题】上市公司及其控股或者控制的公司购买、出售资产,达到以下()情形之一的,构成重大资产重组。I.购买、出售的资产总额占上市公司最近一个会计年度经审计的合并财务会计报告期末资产总额的比例达到50%以上II.购买、出售的资产在最近一个会计年度所产生的营业收入占上市公司同期经审计的合并财务会计报告营业收入的比例达到50%以上III.购买、出售的资产净额占上市公司最近一个会计年度经审计的合并财务会计报告期末净...
A.
Ⅱ、Ⅲ、Ⅳ
B.
Ⅰ、Ⅱ、Ⅲ
C.
Ⅰ、Ⅱ、Ⅲ、Ⅳ
D.
Ⅰ、Ⅱ、Ⅳ
【单选题】“刺激-反应”理论是由哪位心理学家提出的?()
A.
华生
B.
斯金纳
C.
皮亚杰
D.
埃里克森
【单选题】左锁骨上淋巴结肿大多见于下列何种癌肿转移
A.
肺癌
B.
胃或食管癌
C.
乳腺癌
D.
鼻咽癌
【单选题】下列不属于鲁迅作品的是( )。
A.
呐喊
B.
孤独者
C.
伤逝
D.
断魂枪
【单选题】T 形糟的底槽加工常用( )。
A.
三面刃铣刀
B.
T 形槽 铣 刀
C.
角度 铣 刀
D.
圆柱 铣 刀
【单选题】已知 a 3 + b 3 + c 3 -3abc a+b+c =3 ,则(a-b) 2 +(b-c) 2 +(a-b)(b-c)的值为(  )
A.
1
B.
2
C.
3
D.
4
【单选题】左锁骨上淋巴结肿大多见于下列何种癌肿转移
A.
肺癌
B.
胃或食管癌
C.
乳腺癌
D.
肝癌
E.
卵巢癌
【单选题】左锁骨上淋巴结肿大多见于下列何种癌肿转移
A.
肺癌
B.
胃或食管癌
C.
乳腺癌
D.
肝癌
【单选题】左锁骨上淋巴结肿大多见于下列何种癌肿转移
A.
肺癌
B.
胃或食管癌
C.
乳腺癌
D.
肝癌
E.
胰腺癌
【单选题】“刺激一反应”理论是由哪位心理学家提出的?()
A.
华生
B.
斯金纳
C.
皮亚杰
D.
埃里克森
相关题目: