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【单选题】
Internet应用层协议FTP(File Transfer Protocol)协议通过(41)协议提供服务，它和HTTP一样都是Internet上广泛使用的协议，FTP是基于client/Server结构通信的，作为服务器一方的进程，通过监听(42)端口得知有服务请求，在一次会话中，存在(43)个TCP连接。A.
UDP
B.
TCP
C.
IP
D.
IPX
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举一反三
【简答题】Direction: Listen to the following speeches and choose the best one answer.
【简答题】Task 1 PowerShow.com is a leading presentation/slideshows( 展示与放映幻灯片 )sharing website. Whether your application is business, how-to, education, medicine, school, sales, marketing, online training or ju...
【简答题】PowerShow.com is a leading presentation sideshows( 展示与放映幻灯片 ) sharing website. Whether your application is business, how-to, education, medicine, school, sales, marketing, online training or just for ...
【简答题】PowerShow.com is a leading presentation/slideshows ( 展示与放映幻灯片 ) sharing website. Whether your application is business, how-to, education, medicine , school, sales, marketing, online training or just f...
【简答题】PowerShow.com is a leading presentation/Slider shows sharing website 。 Whether your application is business how-to, education , medicine , school, sales, marketing, Online training or just for fun, Po...
【单选题】Direction: Listen to the conversation and choose the best answer.
A.
She should talk about the promotion with her boss.
B.
She should keep shut until a better job is avallable.
C.
She should quit her job to get a better one.
D.
She should urge her boss to keep the promise.
【简答题】PowerShow.com is a leading presentation/slideshows( 展示与放映幻灯片 ) sharing website. Whether your application is business, how-to, education, medicine, school, sales, marketing, online training or just for...
【简答题】Direction: Choose the answer that correctly interprets the sentence from the text.
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