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【单选题】
设图如右所示,在下面的5个序列中,符合深度优先遍历的序列有多少?( ) a e b d f c a c f d e b a e d f c b a e f d c b a e f d b cA.
5个
B.
4个
C.
3个
D.
2个
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【单选题】Great changes ___ in the city, and a lot of factories _____. A. have been taken place; have been set up B. have taken place, have been set up C. have taken place, have set up D. were taken place, were...
A.
have been taken place; have been set up
B.
have taken place, have been set up
C.
have taken place, have set up
D.
were taken place, were set up
【简答题】[A] set on [B] set up [C] set out to [D] set forth
【单选题】Last year four private schools ________ in the city. [ ]
A.
has set up
B.
set up
C.
were set up
D.
will be set up
【单选题】They are going to ______ a new factory in the country. [ ]
A.
set up
B.
set
C.
setting up
【单选题】This is a photo of the power station that ______ in my hometown. [ ]
A.
has set up
B.
has been set up
C.
will set up
D.
is set up
【简答题】A．set off B．set out C．set in D．set up
【简答题】A．set forth A．set aside C．set up D．set down
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