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【单选题】
Traditional Internet access methods like dial-up were so slow that host computers were connected to the dial-up(71)at the customer premise over slow(72)ports. PPP was designed to run directly over these serial links. But with the advent of broadband Internet(73)technologies such as ADSL and cable modems there has been a considerable increase in the bandwidth delivered to the end users. This means that the Lost computers at the customer premise connect to the(74)or cable 'modem' over a much faster medium such as Ethernet. It also means that multiple(75)can connect to the Internet through the same connection.A.
buffer
B.
modem
C.
computer
D.
server
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【单选题】The audience were _______the performance of Chinese athletes at the 21st Winter Olympics. [ ]
A.
impressed by
B.
impressed on
C.
interesting in
D.
expressed by
【单选题】I have been trying to advise them not to act that way, but my advice had no _________on them.
A.
impression
B.
advantage
C.
influence
D.
affect
【简答题】根据数理统计中的贝努利大数定律,当样本数n足够大时,样本的分布函数将近似地( )总体的分布函数,这就是利用样本推断总体的理论依据。
【单选题】The hard-working farmers and their happy life _____ we saw in the countryside made a wonderful impression on us.
A.
whom
B.
who
C.
which
D.
/
【单选题】—What a nice bike! Is it new?—No. I have _________ it for 2 years.
A.
had
B.
sold
C.
borrowed
D.
bought
【单选题】----What a nice bike! How long have you ______ it ? ----- For a week. I spent all my money on it.
A.
bought
B.
had
C.
taken
D.
kept
【单选题】----What a nice bike! How long ____ you ____it? ----- Just two weeks.
A.
have, bought
B.
did, buy
C.
have, had
D.
are, having
【单选题】The final document was supposed to mend the damage ______upon the world by the war.
A.
impressed
B.
compromised
C.
imposed
D.
condensed
【单选题】—Why do you suggest the West Lake? —I believe __beauty of ___ nature there will make__excellent impression upon you.
A.
the; /; the
B.
the; /; an
C.
a; the; an
D.
the; the; an
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