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【单选题】
下面关于加密的说法不正确的是()A.
加密就是基于数学算法的保密密钥对信息进行编码，生成难以理解的字符串
B.
如果没有加密所用的密钥，知道加密程序的算法也能解开加密的信息
C.
加密是保证报文内容的安全
D.
加密消息的保密性取决于加密所用密钥的长度
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【简答题】PH 值调整剂的作用及常用药剂。
【简答题】John an arm from bed to pick up his phone. Sleepily he asked, “Who is it?”
【简答题】John s______ an arm from bed to pick up his phone. Sleepily he asked, “Who is it?”
【单选题】John ______ out an arm from bed to pick up his phone. Sleepily he asked, “Who is it?”
A.
extended
B.
stretched
C.
flooded
【单选题】John ___ an arm from bed to pick up his phone. Sleepily he asked, “Who is it?”
A.
stretched out
B.
was flooded with
C.
made up for
D.
was destined
【简答题】John out an arm from bed tpick up his phone. Sleepily he asked "Who is it?"
【单选题】John _____an arm from bed to pick up his phone. Sleepily he asked, “Who is it?”
A.
spotted
B.
stretched out
C.
found
D.
grabbed
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