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【单选题】
也称作 w 数字签名”.是指用符号及代码组成电子 密 码进行”签名”来代替书写签 名或印章,它采用规范化的科学化的方法,用子鉴定签名人的身份以及对一项数据电文 内容 信 息的认可。
A.
电子签字
B.
电子签名
C.
身份认证
D.
数字证书
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举一反三
【多选题】(2014.12) Task 5 Directions: Read the following passage. After reading it, you should give brief answer to the 5 question (No.56 to No.60) that follow. The answer (in no more than three words) should ...
A.
private student
B.
education-related
C.
leaving school
D.
getting approved
E.
the process
查看完整题目与答案
【单选题】B. Choose the words or expressions and complete the passage: (6分) ★★ As you become more aware of the specific trees that are beneficial in your area, you should do something to save the trees. ●When y...
A.
what
B.
how
C.
why
D.
when
查看完整题目与答案
【简答题】Getting less sleep has become a bad habit for most American kids. According to a new surve y by the National Sleep Foundation, 51% of kids aged 10 to 18 go to bed at 10 pm or later on school nights, e...
查看完整题目与答案
【单选题】项目可行性研究的核心是
A.
市场研究
B.
技术研究
C.
经济评价
D.
利润最大
查看完整题目与答案
【简答题】test 15 Task 5 Directions: Read the following passage. After reading it, you should give brief answers to the 5 questions (No. 56 to No. 60) that follow. The answers (in no more than 3 words) should b...
查看完整题目与答案
【简答题】Getting less sleep has become a bad habit for most American kids. According to a new survey by the National Sleep Foundation, 51% of kids aged 10 to 18 go to bed at 10 pm or later on school nights, ev...
查看完整题目与答案
【简答题】Task 5: Directions: Read the following passage. After reading it, you should give brief answers to the 5 questions (No. 56 to No. 60) that follow. The answers (in no more than 3 words...
查看完整题目与答案
【单选题】下列说法不正确的是( )
A.
从物理意义上来说， KCL 应对电流的实际方向来说才是正确的，但对电流的参考方向来说也必然是正确的。
B.
在节点处各支路电流的方向不能均设为流入节点，否则将只有流入节点的电流而无流出节点的电流。
C.
定律 KCL 、 KVL 和 VCR 是电路分析的基础，它们同时适用于线性电路和非线性电路。
D.
KCL 只与支路电流 有关，而与元件的性质无关。
查看完整题目与答案
【单选题】下列说法不正确的是（ ）A. 从物理意义上来说，KCL应对电流的实际方向来说才是正确的，但对电流的参考方向来说也必然是正确的。B. 在节点处各支路电流的方向不能均设为流入节点，否则将只有流入节点的电流而无流出节点的电流。C. 定律KCL、KVL和VCR是电路分析的基础，它们同时适用于线性电路和非线性电路。D. KCL只与支路电流有关，而与元件的性质无关。
A.
A
B.
B
C.
C
D.
D
查看完整题目与答案
【单选题】下列关于地基基础设计的水文地质条件说法不正确的是()
A.
遇到地下水时,一般应尽量将基础埋在地下水位以上
B.
当基础位于河岸边时,其埋深应在流水的冲刷作用深度以上
C.
如基础埋深位于地下水位线以下,应采取施工降、排水,保证地基土不受扰动
D.
对有侵蚀性的地下水,基础位于地下水以下时,应采取措施防止基础遭受侵蚀
查看完整题目与答案
相关题目：
【多选题】(2014.12) Task 5 Directions: Read the following passage. After reading it, you should give brief answer to the 5 question (No.56 to No.60) that follow. The answer (in no more than three words) should ...
A.
private student
B.
education-related
C.
leaving school
D.
getting approved
E.
the process
查看完整题目与答案
【单选题】B. Choose the words or expressions and complete the passage: (6分) ★★ As you become more aware of the specific trees that are beneficial in your area, you should do something to save the trees. ●When y...
A.
what
B.
how
C.
why
D.
when
查看完整题目与答案
【简答题】Getting less sleep has become a bad habit for most American kids. According to a new surve y by the National Sleep Foundation, 51% of kids aged 10 to 18 go to bed at 10 pm or later on school nights, e...
查看完整题目与答案
【单选题】项目可行性研究的核心是
A.
市场研究
B.
技术研究
C.
经济评价
D.
利润最大
查看完整题目与答案
【简答题】test 15 Task 5 Directions: Read the following passage. After reading it, you should give brief answers to the 5 questions (No. 56 to No. 60) that follow. The answers (in no more than 3 words) should b...
查看完整题目与答案
【简答题】Getting less sleep has become a bad habit for most American kids. According to a new survey by the National Sleep Foundation, 51% of kids aged 10 to 18 go to bed at 10 pm or later on school nights, ev...
查看完整题目与答案
【简答题】Task 5: Directions: Read the following passage. After reading it, you should give brief answers to the 5 questions (No. 56 to No. 60) that follow. The answers (in no more than 3 words...
查看完整题目与答案
【单选题】下列说法不正确的是( )
A.
从物理意义上来说， KCL 应对电流的实际方向来说才是正确的，但对电流的参考方向来说也必然是正确的。
B.
在节点处各支路电流的方向不能均设为流入节点，否则将只有流入节点的电流而无流出节点的电流。
C.
定律 KCL 、 KVL 和 VCR 是电路分析的基础，它们同时适用于线性电路和非线性电路。
D.
KCL 只与支路电流 有关，而与元件的性质无关。
查看完整题目与答案
【单选题】下列说法不正确的是（ ）A. 从物理意义上来说，KCL应对电流的实际方向来说才是正确的，但对电流的参考方向来说也必然是正确的。B. 在节点处各支路电流的方向不能均设为流入节点，否则将只有流入节点的电流而无流出节点的电流。C. 定律KCL、KVL和VCR是电路分析的基础，它们同时适用于线性电路和非线性电路。D. KCL只与支路电流有关，而与元件的性质无关。
A.
A
B.
B
C.
C
D.
D
查看完整题目与答案
【单选题】下列关于地基基础设计的水文地质条件说法不正确的是()
A.
遇到地下水时,一般应尽量将基础埋在地下水位以上
B.
当基础位于河岸边时,其埋深应在流水的冲刷作用深度以上
C.
如基础埋深位于地下水位线以下,应采取施工降、排水,保证地基土不受扰动
D.
对有侵蚀性的地下水,基础位于地下水以下时,应采取措施防止基础遭受侵蚀
查看完整题目与答案