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【单选题】
不参与构成大脑动脉环的血管是A.
前交通动脉
B.
大脑中动脉
C.
大脑后动脉
D.
后交通动脉
E.
颈内动脉
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举一反三
【简答题】分析图F.4的输入输出关系。
【单选题】Life insurance, before available only to young, healthy persons, can now be obtained for old people, and even for pets.
A.
before young, healthy persons available only,
B.
available only to young, healthy persons before,
C.
available only to persons young, but more healthy,
D.
before young and healthy persons only available to,
【单选题】It is not how much we do but how much love we put into what we do ________ benefits our work most. [ ]
A.
who
B.
which
C.
that
D.
what
【单选题】These young people are now making an active ______ to beautify our city.
A.
part
B.
effort
C.
decision
D.
plan
【单选题】Life insurance, before available only to young, healthy persons, can now be obtained for quite a large proportion of the elderly population, and, sorry, even for pet animals.
A.
before young, healthy persons available only,
B.
available only to young, healthy persons before,
C.
available only to persons young, but more healthy,
D.
before young and healthy persons only available to,
【单选题】It is not how much we do but how much love we put into what we do _____ benefits our work most.
A.
when
B.
that
C.
what
D.
how
【单选题】Life insurance, before available only to young, healthy persons, can now be obtained from old people, and even for pets.
A.
before young, healthy persons available only,
B.
available only to young, healthy persons before,
C.
available only to persons young, but more healthy,
D.
before young and healthy persons only available to,
【简答题】一位全加器FA和2—4译码器及与非门组成的逻辑电路如图3.2.85所示，分析出该电路的输出与输入的关系。要求写出函数F(A，B，C，D)的逻辑表达式(不用化简)，最终结果表示为最大项之积的形式。
【单选题】Only now are young people ____the importances of having knowledge.
A.
aware of
B.
be aware of
C.
aware
D.
have become aware of
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