【单选题】【消耗次数：1】
I was awfully tired when I got home from work, but a
half hour nap ____ me.
①
revived
②
released
③
relieved
④
recovered
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相关题目
【单选题】
I was awfully tired when I got home from work, but a half hour nap _____me.
①
revived
②
released
③
relieved
④
recovered
【单选题】
I went to the doctors yesterday. I had to wait for half an hour before he________see me.
①
can
②
may
③
might
④
could
【单选题】
I went to the doctor’s yesterday. I had to wait for half an hour before he ___ see me.
①
?can
②
?may
③
?might
④
?could
【单选题】
5. I went to the doctor’s yesterday. I had to wait for half an hour before he _____ see me.
①
can
②
may
③
might
④
could
【单选题】
The taxi driver _______ at me in the rear-view mirror when I got on the car.
①
smile
②
laughed
③
grinned
④
stared
【单选题】
When I got up this morning, I felt the temperature had ____.
①
sunk
②
reduced
③
dropped
④
lowed
【单选题】
When I got there, Henry ____ to the hospital.
①
had been sent
②
would send
③
was sent
④
would be sent
【单选题】
--I went to the beach and got plenty of rest. --_______. You looked tired last time I saw you.
①
：I hope so
②
：Really
③
：Im glad you did
④
：The sound was nice
【单选题】
I will take my daughter with me when I __________ Shanghai.
①
go to
②
will go to
③
have been to
④
have gone to
随机题目
【单选题】
加密是指将一个信息经过（ ）及加密函数转换，变成无意义的密文，而接受方则将此密文经过解密函数、（ ）还原成明文。
①
加密钥匙、解密钥匙
②
解密钥匙、解密钥匙
③
加密钥匙、加密钥匙
④
解密钥匙、加密钥匙
【单选题】
以下关于非对称密钥加密说法正确的是：（ ）。
①
加密方和解密方使用的是不同的算法
②
加密密钥和解密密钥是不同的
③
加密密钥和解密密钥匙相同的
④
加密密钥和解密密钥没有任何关系
【单选题】
假设使用一种加密算法，它的加密方法很简单：将每一个字母加5，即a加密成f。这种算法的密钥就是5，那么它属于（ ）。
①
对称加密技术
②
分组密码技术
③
公钥加密技术
④
单向函数密码技术
【多选题】
加密系统的基本准则包括（ ）。
①
信息的私密性(Privacy)
②
信息的完整性(Integrity)
③
信息的源发鉴别(认证)(Authentication)
④
信息的防抵赖性(非否定)(Non-Reputation)
【多选题】
密码分析的常用方法有以下几类（ ）。
①
惟密文攻击（cybertextonly attack）
②
已知明文攻击（knownplaintext attack）
③
选择明文攻击（chosenplaintext attack）
④
选择密文攻击（chosenciphertext attack）