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【简答题】
地铁2号线正线信号系统采用基于无线通信技术的移动闭塞制式(CBTC)列车自动控制系统,同时还提供了在连续式ATP功能丧失情况下的iATP和联锁控制级列车防护系统,支持CBTC列车和非CBTC列车的安全混运。信号系统包括()、()、()、()四个子系统。
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举一反三
【单选题】From the passage we know that Larry Page __________.
A.
was born into a rich merchant family
B.
was once a student in Stanford University
C.
published some academic articles when young
D.
was Brin's important partner in starting Google
【单选题】Florence Nightingale was born into a rich
A.
Italian family．
B.
Russian family．
C.
English family ．
D.
German family．
【单选题】在直流电作用下,组织的兴奋性会发生改变,阳极下的兴奋性(),阴极下的兴奋性()。
A.
不变 升高
B.
下降 不变
C.
下降 升高
D.
升高 不变
E.
升高 下降
F.
不变 不变
【单选题】The rich man __________a hospital and a school in the town where he was born．
A.
fixed
B.
founded
C.
built
D.
set
【简答题】在直流电作用下,组织的兴奋性发生改变,阳极下兴奋性___、阴极下兴奋性 。
【简答题】如何建立并维护与异性之间的亲密关系?
【单选题】George Washington was born in 1732 in a rich family in _______ is now the state of Virginia.
A.
which
B.
where
C.
that
D.
what
【单选题】From the article, we can guess the author was ______.
A.
quite smart
B.
blind
C.
born in a rich family
D.
a great woman
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