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【单选题】
女,30岁,因停经50日行人工流产术,术中患者突然出现面色苍白,出汗,心动过缓,血压下降。最可能的原因是A.
羊水栓塞
B.
人工流产综合征
C.
子宫穿孔
D.
吸宫不全
E.
休克
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【单选题】The atmosphere is all the air surrounding the earth. Without it, we would be forced to seek shelter from the sun, as there would be no atmosphere to protect us from the sun's deadly rays. Large and po...
A.
the total amount of oxygen over the earth
B.
mixture of gases surrounding the earth
C.
a source of storms
D.
the diffusion of waste gas
【判断题】Like any other area, virtual market has its own cons, the most important one being the lack of a “physical presence”.
A.
正确
B.
错误
【简答题】Tourism is one of the great promising industries of the last few years. In most countries there are official organizations to encourage tourists. In fact, very often the ordinary people are worse off ...
【简答题】Tourism is one of the most promising industries of the last few years. In most countries there are official organizations to encourage tourists. In fact, very often the ordinary people are worse off b...
【简答题】带挂梁的T形刚构桥具有哪些优缺点?
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