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【单选题】
应按照有关文件的规定计取,作为不可竞争费用,不得让利,也不得任意调整计算标准的是()A.
分部分项工程费
B.
措施项目费
C.
其他项目费
D.
规费
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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
【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 6xygen sources.
B.
It has lost its backup oxygen sources.
C.
It has lost both the primary and the backup oxygen sources.
D.
It has last neither the primary or the backup oxygen sources.
【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.
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