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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 mission. But, a Russian space official in Moscow told Rueters News Agency that only the primary generator developed trouble and that the unit was repaired by the crew. More about the latest problem on board the space station from VOA's Nick Simming. 'The U.S. Space Agency says Mir's two primary sources of oxygen have stopped working and now there is only several day's supply of oxygen inside Mir's cabin. Mir's backup oxygen generating candles failed Monday just after the normal oxygen supply system used by the spacecraft unexpectedly shut down. That normal oxygen source, a method that extracts oxygen from water, had been turned off for several days to conserve energy heated and automatically shut down. NASA's spokesman Michael Brock Hais says if Mir's oxygen supply problem is not fixed soon, the two Russians and one American on board will have to abort. This problem is the most serious to plague the space station which has endured power loss, computer malfunction and even a collision with a supply vessel all in the past six months. Nick Simming VOA News, Washington.' What is the problem with Russia's space station?
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.
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【单选题】公文纸型应当采用 ( )。
A.
A4型
B.
B5型
C.
16开型
D.
32开型
【多选题】常见的几何建模模式有( )
A.
线框建模
B.
表面建模
C.
实体建模
D.
特征建模
E.
尺寸建模
【单选题】国家行政机关公文用纸应采用()。
A.
B4型纸
B.
B5型纸
C.
A3型纸
D.
A4型纸
【单选题】外源性凝血途径因子是
A.
因子Ⅻ
B.
因子Ⅺ
C.
因子Ⅸ
D.
因子III
E.
因子Ⅷ
【单选题】柴油机运转中发现喷油器故障并需立即更换时,下列正确的操作顺序是 。I、打开示功阀;II更换喷油器:III、停车:IV、泄放气缸内压力。
A.
Ⅰ→Ⅱ→Ⅳ→Ⅲ
B.
Ⅰ→Ⅲ→Ⅳ→Ⅱ
C.
Ⅲ→Ⅰ→Ⅳ→Ⅱ
【多选题】下面关于施工网络图的特点说法正确的是:( )。
A.
节点之间的连接实线(指线型)按分项工程的作业先后顺序用双向箭头标示
B.
整个网络图只有一个开始节点和一个结束节点
C.
网络图中没有一个可以通过箭头循环的回路
D.
网络图中没有同一编号的两个箭头
【单选题】某青年男性患者,受凉后畏寒、发热、咳嗽、右侧胸痛 5 天。查体:急性热病容,右侧肺呼吸运动减弱,语音震颤增强,右下肺可闻支气管呼吸音及胸膜摩擦音。最可能诊断为: prefix="o" ns="urn:schemas-microsoft-com:office:office" ?xml:namespace>
A.
右侧大叶性肺炎
B.
右支气管炎并胸腔积液
C.
右侧大叶性肺炎并胸膜炎
D.
胸膜炎
E.
右上肺结核
【单选题】柴油机运转中发现喷油器故障并需立即更换时,下列动作的正确顺序是__1打开示功阀;2更换喷油器;3停车;4泄放气缸内压力。
A.
①③④②
B.
③①④②
C.
①②④③
D.
①④③②
【单选题】《荷马史诗》中特洛伊城位于( ),人们一直认为它只是神话中的城市,但1871年在土耳其的考古发掘中,发现了这座城市的遗址。
A.
希腊半岛
B.
大希腊
C.
古埃及
D.
小亚细亚地区
【单选题】、特洛伊城遗址位于( )
A.
土耳其
B.
印度
C.
泰国
D.
尼泊尔
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