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【单选题】
若有数组 A和B的声明"static char A[ ]="ABCDEF",B[ ]={'A','B','C','D','E','F'};", 则数组 A和数组B的长度分别是( )A.
7，6
B.
6，7
C.
6，6
D.
7，7
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举一反三
【简答题】The disrupted natural ecosystem has led to ______ of some species and put a lot of species in er.
【简答题】昆虫足的类型多样，蝗虫的后足为（），螳螂的前足为（），蜜蜂的后足为（）。
【单选题】Researchers conducted breeding studies with two species of mice. Species A was monogamous, while Species B was not.Supporters of the competing parental interest theory hypothesized that the monogamous...
A.
When females from Species A were bred with males from Species B, the resulting offspring were extremely small.
B.
When females from Species A were bred with males from Species B, the resulting offspring were extremely large.
C.
When females from Species B were bred with males from Species A, the resulting offspring were extremely large.
D.
The offspring of Species B mice were consistently smaller than the off-spring of Species A mice.
【简答题】昆虫胸足的类型较多，其中蜜蜂的后足为（），螳螂的前足为（），蝗虫的后足为（）。
【单选题】_ that she didn't do a good job, I don't think I am abler than her. [ ]
A.
To have said
B.
Having said
C.
To say
D.
Saying
【单选题】Evolutionary biologists believe that speciation, the formation of a new species, often begins when some kind of physical barrier arises and divides a population of a single species into separate subpo...
A.
The division of a population into subspecies.
B.
The reuniting of separated populations after they have become distinct species.
C.
The movement of a population to a new homeland.
D.
The absence of gene flow between subpopulations.
【简答题】species，strain
【单选题】There used to be a church behind the cemetery,_____________?
A.
didn ’ t there
B.
used there
C.
usedn ’ t It
D.
didn ’ t it
【单选题】There used to be a cinema here before the war, _______?
A.
usedn ' t/wasn ' t there
B.
was there
C.
used there
D.
did there
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