皮皮学，免费搜题
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搜题
【单选题】
64D半自动闭塞请求发车时，ZDJ电路中检查了BSJ↑、ZKJ↓、TJJ↓、HDJ↓、ZXJ↓、FXJ↓ 的条件A.
说明区间空闲并已收到同意接车信号
B.
说明区间空闲并没有办理任何闭塞手续
C.
说明区间占用并已收到列车出发信号
D.
说明区间空闲并办理了请求闭塞手续
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皮皮学刷刷变学霸
举一反三
【多选题】shots |shield |childhood |assisting |mass Another hero from the __1___shooting in Tucson was Dory Stoddard. Dory gave his life for his wife, Mavy. Dory and his wife had been friends since __2___and wh...
A.
mass
B.
childhood
C.
shots
D.
shield
E.
assisting
【多选题】世界正处于大发展大变革大调整时期,和平与发展仍然是时代主题。____、____、____、____深入发展。
A.
世界多极化
B.
经济全球化
C.
社会信息化
D.
文化多样化
E.
治理民主化
【简答题】Another hero from the __1__ in Tuscon was Dory Stoddard. Dory gave his life for his wife, Mavy. Dory and his wife had been friends since childhood and when Dory heard shots __2__ he immediately fell o...
【简答题】在某段时间里,若对网络中某一资源的需求超过了该资源所能提供的可用部分,网络的性能就要变坏。这种情况叫做( )。
【简答题】The fishermen caught Dory in their net. Dory ____.
【简答题】危险性分析的内容包括三个部分,分别为 :( ) 、( ) 、( ) 。
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