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【单选题】
患者女,62岁。心前区压榨性疼痛3小时伴冷汗、恐惧来院急诊,疑为急性心肌梗死。为明确诊断首选的检查是A.
心电图
B.
心脏超声
C.
冠状动脉造影
D.
胸部X线片
E.
血脂测定
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举一反三
【单选题】Most native speakers of English will ___________ in a regular college essay of about 700 words.
A.
usually end the paragraph with a topic sentence
B.
arrange the body paragraphs from the strongest to the weakest
C.
develop a paragraph in a circular fashion
D.
arrange the body paragraphs from the weakest to the strongest
【简答题】交直流型电力机车通过（）将接触网供给的单相工频交流电引入机车内部。
【单选题】The type of uncertainty among native speakers would most likely occur in a conversation between ______.
A.
a doctor and a nurse
B.
a father and his daughter
C.
a scientist and a worker
D.
a lawyer and his client
【简答题】The _____ language used in most international organizations is English. A．official B．native C．frequent D．separate
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