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【单选题】
, 36 岁,有慢性风湿性心脏病病史。近日轻度活动即感心悸、气促,此病人并发心律失常,最常见的类型为A.
室性期前收缩
B.
前收缩
C.
阵发性心动过速
D.
心房颤动
E.
房室传导阻滞
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反馈参考答案：
举一反三
【单选题】In concluding your direct reply letter, you should ( )
A.
avoid repeating the information provided or referring to its use.
B.
sign off with a familiar expression such as "If I may be of further assistance, please don't hesitate to call me."
C.
provide specifics if further action is required.
D.
omit your name but include the company name in the signature block.
【单选题】【第三章1例题 ·单选题】 为克服对客户需求的变化缺乏敏感性、公司结构性产能过剩等问题,神大钢铁公司近年来收购了远航造船厂,参股国兴造船厂,与天州钢帘线制造厂签订了合作协议。神大钢铁公司的发展战略是( )。( 2017 年)
A.
前向一体化战略
B.
后向一体化战略
C.
密集型战略
D.
多元化战略
【单选题】The article suggests that______.
A.
our earth exists before the sun
B.
how space is formed
C.
no one knows where the earth comes from
D.
our earth used to be a high mountain on the sun
【单选题】The article suggests that a solution to the problem
A.
is unlikely to be identified.
B.
must precede further research.
C.
is hypothetically easy.
D.
will limit global shipping.
【简答题】A concluding paragraph is your chance to _______ .
【单选题】曝气池混合液SVI指数是指______。
A.
曝气池混合液悬浮污泥浓度
B.
曝气池混合液在1000mL量筒内静止沉淀30min后，活性污泥所占浓度
C.
曝气池混合液静止沉淀30min后，每单位重量干泥所形成湿污泥的体积
D.
曝气池混合液中挥发性物质所占污泥量的比例
【单选题】The article suggests that______.
A.
our earth exists before the sun
B.
how space formed
C.
no one knows where the earth comes from
D.
our earth used to be part of a high mountain on the sun
【单选题】(2010年)曝气池混合液SVI指数是指：
A.
曝气池混合液悬浮污泥浓度
B.
曝气池混合液在1000mL量筒内静止沉淀30min后，活性污泥所占体积
C.
曝气池混合液静止沉淀30min后，每单位重量干泥所形成湿污泥的体积
D.
曝气池混合液中挥发性物质所占污泥量的比例
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