【多选题】【消耗次数：1】
下列说法错误的是（ ）
①
FTP协议使用两个端口进行通信
②
TFTP协议传输不超过512字节数据
③
TFTP只支持二进制传输
④
telnet使用22端口登录远程主机
参考答案：
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相关题目
随机题目
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Everybody likes her because she is always _______ .
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Everybody likes her because she is always _______ .
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cheerful
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sad
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selfish
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It is the general manager who makes the _______decisions in business.
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beginning
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finishing
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first
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final
【单选题】
Those gifts o rare books that were given t us were deeply _____.
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appreciated
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approved
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appealed
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applied
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Haven’t seen you for ages! What are you busy doing now?____________
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I hate the weather here.
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My hair is getting a bit longer.
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I am working part time in a bookshop, you know.
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Yeah, thanks for coming.
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We are planning an outing. _________ Sure.
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Where are you going?
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When will you leave?
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How is everything?
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Do you want to join us?
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It is dangerous to ______ outdated(过时的) ideas and theories.
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cling to
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strive for
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run through
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resort to
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I had my meals ______ when I was ill in bed with a bad cold.
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to bring
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bring
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brought
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bringing
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Don’t make faces in class.____________
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Excuse me, I am wrong.
②
Certainly, I will.
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That’s OK.
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Sorry, I won’t do it again.
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He offered to ___ her a hand as the suitcase was too heavy for her to carry.
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lend
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help
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grant
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loan
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Our new house is very ____ for me as I can get to the office in five minutes.
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adaptable
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convenient
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available
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comfortable