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【单选题】
●用户A从CA获得用户B的数字证书，并利用 (62)验证数字证书的真实性。 (62)A.
B的公钥
B.
B的私钥
C.
CA的公钥
D.
CA的私钥
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举一反三
【简答题】The circuit is shown as following. A set of independent loops is
selected as shown in the circuit, and corresponding loop currents are I 1 , I 2 , I 3 and I 4 respectively. What is the mutual resista...
【单选题】The audience's response to the new image of 'Harry Porter' is______.
A.
negative
B.
positive
C.
indifferent
D.
none of the above
【单选题】A speaker's credibility is MOST clearly determined by the audience's perception of ()
A.
Competence and character.
B.
Cleanliness and neatness.
C.
Vocal pitch and volume.
D.
Posture and stance.
【简答题】处理机与外设之间数据交换的方式可归纳为程序查询方式、程序中断方式、_______方式和_______方式四种。
【单选题】Tim’s performance was __wonderful than Peter’s in the play. The audience thought little of both.
A.
not more
B.
no more
C.
much more
D.
not much
【单选题】The circuit is shown in the figure, we can find out that the current I is equal to ____A.Choose A,B,C or D.
A.
-1A
B.
1A
C.
2A
D.
3A
【单选题】The circuit is shown in the figure. The relationship of the voltage and the current of this circuit is _____. Choose A,B,C or D.
A.
U=3-3I
B.
U=3+3I
C.
U=-1+3I
D.
U=-1-3I
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