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【单选题】
我国第一大海港城市是（），它位于东海之滨，是全国海岸线的中点，又是全国第一大河长江的出海口，加之地处产销最兴旺、经济最发达、文化氛围最浓郁的华北地区，这是使其得以成为我国目前最大枢纽港的主要原因。A.
上海
B.
青岛
C.
天津
D.
大连
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举一反三
【单选题】We estimate the running time of an algorithm by:
A.
Counting the number of lines in an algorithm
B.
Counting the number of equations in an algorithm
C.
Counting the number of key computational steps in an algorithm
D.
None of the options given
【单选题】From the first two paragraphs, we can estimate______.
A.
illegal immigration has a serious social problem in the U.S.
B.
the Pew Hispanic Center could not give the reason for the decline of illegal immigration
C.
the statistics of illegal immigration is not significant
D.
the political and social disorder in the U.S. is on the wane
【简答题】好读书, ;每有会意,便欣然忘食。(陶渊明《五柳先生传》)
【单选题】()your request, we gave you an estimate of approximate requirements for next year.
A.
For
B.
At
C.
By
D.
Under
【单选题】What does The World Bank estimate if we have a worldwide flu epidemic?
A.
Global wealth will go down by over three billion dollars and we'd have millions of deaths.
B.
Global wealth will go down by over three trillion dollars and we'd have millions of deaths.
C.
Global wealth will go down by over thirty billion dollars and we'd have billions of deaths.
D.
Global wealth will go down by over thirty trillion dollars and we'd have billions of deaths.
【单选题】We usually just estimate the running time of an algorithm because:
A.
The running time of a software program is too short to be accurately measured
B.
It is impossible to isolate the running time of a specific software program
C.
We generally do not want to implement different algorithms for the same computing problem in order to judge their respective performances
D.
None of the options given
【单选题】We _____ estimate the spirit of the Shanghai Expo too much, which is sure to play an important role in our daily life.
A.
may not
B.
should not
C.
must not
D.
cannot
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