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【单选题】
( )是网络通信中标志各方身份信息的一系列数据,提供一种在Internet上验证身份的方式
A.
数字认证
B.
数字证书
C.
电子认证
D.
电子证书
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参考答案：
举一反三
【单选题】--- Where is my passport? I remember _______ it here. --- You shouldn't have left it here. Remember _______ it with you all the time.
A.
to put；to take
B.
putting；taking
C.
putting；to take
查看完整题目与答案
【单选题】铁素体与渗碳体两相交替重叠的层片状组织称为( )。
A.
奥氏体
B.
珠光体
C.
贝氏体
D.
马氏体
查看完整题目与答案
【简答题】A: The cashier gave me too much change. What should I have ________(do)?B: You should have __________ (say) something. You shouldn't have ___________ (take) the money.
查看完整题目与答案
【单选题】Where is my passport? I remember _______ it here. You shouldn't have left it here. Remember _______ it with you all the time.
A.
to put;to take
B.
putting;taking
C.
putting;to take
D.
to put;taking
查看完整题目与答案
【单选题】听力原文：M: Just look at my car! I only bought it last week. You shouldn't have been going so fast. W: Well, I am sorry, but it was not my fault. There's a 'stop' sign, you must have missed it. You should...
A.
The woman was driving too fast.
B.
The woman was not careful enough.
C.
The man's car was out of control.
D.
The man didn't stop because he didn't see the sign.
查看完整题目与答案
【判断题】混凝土搅拌时,宜采用石子 、水泥 、砂的投料顺序。
A.
正确
B.
错误
查看完整题目与答案
【单选题】对于复杂、高价值的采购或者重大品项的采购,通常首先进行( )
A.
工厂参观以及被选中的生产能力分析
B.
调研和财务分析
C.
观摩其设施设备的情况
D.
评价会议
查看完整题目与答案
【简答题】图纸的规格有 ( )种,分别是( )
查看完整题目与答案
【单选题】02mol·L -1 的HCN溶液与0.02mol·L -1 的NaCN溶液等体积混合，已知混合溶液中c(CN - )＜c(Na + )，则下列关系中，正确的是 [     ]
A.
c(Na + )＞c(CN - )＞c(H + )＞c(OH - )
B.
c(HCN)+c(CN - )=0.04mol·L -1
C.
c(Na + )+c(H + )=c(CN - )+c(OH - )
D.
c(CN - )＞c(HCN)
查看完整题目与答案
【多选题】非典型创业的情况有哪些?()
A.
公务员创业
B.
事业单位与员工创业
C.
企业员工创业
D.
小城市和边远地区创业
查看完整题目与答案
相关题目：
【单选题】--- Where is my passport? I remember _______ it here. --- You shouldn't have left it here. Remember _______ it with you all the time.
A.
to put；to take
B.
putting；taking
C.
putting；to take
查看完整题目与答案
【单选题】铁素体与渗碳体两相交替重叠的层片状组织称为( )。
A.
奥氏体
B.
珠光体
C.
贝氏体
D.
马氏体
查看完整题目与答案
【简答题】A: The cashier gave me too much change. What should I have ________(do)?B: You should have __________ (say) something. You shouldn't have ___________ (take) the money.
查看完整题目与答案
【单选题】Where is my passport? I remember _______ it here. You shouldn't have left it here. Remember _______ it with you all the time.
A.
to put;to take
B.
putting;taking
C.
putting;to take
D.
to put;taking
查看完整题目与答案
【单选题】听力原文：M: Just look at my car! I only bought it last week. You shouldn't have been going so fast. W: Well, I am sorry, but it was not my fault. There's a 'stop' sign, you must have missed it. You should...
A.
The woman was driving too fast.
B.
The woman was not careful enough.
C.
The man's car was out of control.
D.
The man didn't stop because he didn't see the sign.
查看完整题目与答案
【判断题】混凝土搅拌时,宜采用石子 、水泥 、砂的投料顺序。
A.
正确
B.
错误
查看完整题目与答案
【单选题】对于复杂、高价值的采购或者重大品项的采购,通常首先进行( )
A.
工厂参观以及被选中的生产能力分析
B.
调研和财务分析
C.
观摩其设施设备的情况
D.
评价会议
查看完整题目与答案
【简答题】图纸的规格有 ( )种,分别是( )
查看完整题目与答案
【单选题】02mol·L -1 的HCN溶液与0.02mol·L -1 的NaCN溶液等体积混合，已知混合溶液中c(CN - )＜c(Na + )，则下列关系中，正确的是 [     ]
A.
c(Na + )＞c(CN - )＞c(H + )＞c(OH - )
B.
c(HCN)+c(CN - )=0.04mol·L -1
C.
c(Na + )+c(H + )=c(CN - )+c(OH - )
D.
c(CN - )＞c(HCN)
查看完整题目与答案
【多选题】非典型创业的情况有哪些?()
A.
公务员创业
B.
事业单位与员工创业
C.
企业员工创业
D.
小城市和边远地区创业
查看完整题目与答案
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