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【单选题】
男性，20岁，汽车突然减速，前胸撞击方向盘。主诉胸闷、胸背疼痛2小时。体格检查：上肢血压22/16kPa。摄片发现上纵隔影，左侧胸腔积液。最可能的诊断为( )A.
主动脉夹层分离
B.
左肺挫裂伤，左侧血胸
C.
心包填塞
D.
纵隔气肿
E.
心肌梗死
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皮皮学刷刷变学霸
举一反三
【单选题】______ several hypotheses have been advanced for the disappearance of the dinosaur, no conclusive evidence supports any of them.
A.
Despite
B.
In spite of
C.
Although
D.
In spite of the fact
【单选题】The best title for the passage would be ______.
A.
Hypotheses and Theories
B.
On Distinguishing Fact from Fiction
C.
The Nature of Science and Scientists
D.
Biology and the Scientific Age
【简答题】(P29) 不健康的生活方式是引起多种 ( ) 的最主要原因。
【简答题】The monitor theory consists of five hypotheses, what are they?
【多选题】The hypotheses of Macroeconomics are:
A.
Market mechanisms are perfect
B.
Market mechanisms are imperfect
C.
The government has the ability and authority to regulate the economy
D.
The government do not regulate the economy, let it free
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