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【单选题】
Internet中的E-mail接收邮件所使用的协议是( )A.
HTTP
B.
SMTP
C.
POP3
D.
FTP
拍照语音搜题，微信中搜索"皮皮学"使用
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皮皮学刷刷变学霸
举一反三
【单选题】I got from him only a letter, which was pu t on my office desk; to the receipt of this letter I have never heard from him.
A.
subsequent
B.
remarkable
C.
solitary
【简答题】根据要求改写句子。 1. She wrote a letter to her friend. (用Just 改为现在完成时) She _ just a letter to her friend. 2. Lucy likes reading books better than playing s .(改为同义句) Lucy _ reading books playing s . 3....
【简答题】在低压设备上作业时,严禁1人单独作业。带电作业时作业人员的安全等级不得低于三级;停电作业时至少有1人的安全等级不低于_____ 级。
【单选题】一 Do you know where I can post the letter? —____.
A.
I put the letter on your desk in the office
B.
What letters do you post?
C.
There's a post office at the end of St. Beach
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