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【单选题】
第一心音的形成,主要源于:A.
二尖瓣三尖瓣关闭时的振动
B.
二尖瓣和三尖瓣开放时的振动
C.
二尖瓣和主动脉瓣关闭时的振动
D.
主动脉瓣和肺动脉瓣关闭时的振动
E.
主动脉瓣和肺动脉瓣开放是的振动
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【单选题】The data station usually means a(71)unit that provides data for transmission, that accepts transmitted data, and that performs all functions necessary for communication with another functional unit. D...
A.
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B.
functional
C.
capacity
D.
quality
【单选题】The data shows ________ successful people have in common is ________ they have perseverance.
A.
that that; that
B.
that what; that
C.
what that; what
D.
all that; because
【单选题】陈先生,岁。左腰部被撞 1 小时,左腰肿痛入院。查:血压 66/46mmHg、脉搏 120次/分,神志清,面色苍白,脉细速,左腰膨隆,有压痛,腹软,无肌紧张,无移动性浊音,肠鸣音正常。经导尿引出黄色透明液约 200ml,快速输液 1000ml、血浆 400ml、全血 400ml,病情无好转,血压继续下降。哪种损伤可能性大( )
A.
脾破裂
B.
肠破裂
C.
肾部分裂伤
D.
肾全层裂伤
E.
肾蒂断裂伤
【单选题】The data shows the situations of the world economy ________ careful observation and detailed studies. [ ]
A.
in the name of
B.
on the basis of
C.
at the cost of
D.
in charge of
【简答题】说明植物细胞有丝分裂过程及各个时期的特点及意义?
【单选题】The data shows __________ successful people have in common is _______ they have perseverance.
A.
that, that
B.
what, that
C.
what, what
D.
all, because
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