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【单选题】
脊髓压迫症的治疗中不恰当的选择是哪A.
治疗原则是尽快去除病因
B.
急性脊髓压迫症要等到病情平稳进行减压治疗
C.
瘫痪肢体积极进行康复治疗
D.
长期卧床者应防治泌尿系感染、压疮等并发症
E.
硬膜外脓肿予以椎板切除清除脓肿并长期抗感染治疗
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【单选题】听力原文： The U.S. Space Agency NASA says Russia's orbiting Mir space station has lost its primary and backup oxygen sources. If the problem is not fixed, the 3-mernber crew would have to abort the missio...
A.
It has lost its primary oxygen sources.
B.
It has lost its backup oxygen sources.
C.
It has lost both the primary and the backup oxygen sources.
D.
It has lost neither the primary or the backup oxygen sources.
【简答题】使能定时器1中断的语句是
【简答题】使能定时器TIM2的溢出中断,使用的函数是______。
【单选题】TCP协议是面向字节流的协议，其特点是（）
A.
接收方收到的数据块和发送方发出的数据块大小可能不相同
B.
接收方的TCP每次向应用层交付一个完整的报文
C.
TCP协议知道所传输的数据块的含义
D.
TCP协议不要求主机维护复杂的状态表
【单选题】听力原文： The U.S. Space Agency NASA says Russia's orbiting Mir space station has lost its primary and backup oxygen sources. If the problem is not fixed, the 3-member crew would have to abort the mission...
A.
It has lost its primary oxygen sources.
B.
It has lost its backup oxygen sources.
C.
It has lost both the primary and the backup oxygen sources.
D.
It has lost neither the primary or the backup oxygen sources.
【单选题】听力原文： The U. S. Space Agency NASA says Russia's orbiting Mir space station has lost its primary and backup oxygen sources. If the problem is not fixed, the 3 - member crew would have to abort the miss...
A.
America's
B.
Britain's
C.
Russia's
D.
Japan's
【单选题】The design of the orbiter indicates
A.
NASA's determination to continue space exploration.
B.
NASA's disadvantage in space technology.
C.
the great pressure from Congress on ＮＡＳＡ.
D.
a heavy defeat for ＮＡＳＡ.
【单选题】The U.S. Space Agency NASA says ______ orbiting Mir space station has lost its primary and backup oxygen sources.
A.
America's
B.
Britain's
C.
Russia's
D.
Japan's
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