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【单选题】
男性，18岁。胸部隐痛7天，伴低热、咳嗽、气促。查体示：心界明显扩大，未见心尖搏动，心音遥远，颈静脉怒张。最可能的诊断是A.
扩张性心肌病
B.
慢性缩窄性心包炎
C.
肺部感染
D.
急性病毒性心肌炎
E.
急性心包炎伴心包积液
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举一反三
【单选题】When the employee is injured while () Party B undertakes to pay expenses for medical treatment and nutrition.
A.
for duty
B.
on duty
C.
in duty
D.
by duty
【简答题】试述pUC8载体 所拥有的哪 3 个优点使它成为最受欢迎的大肠杆菌克隆载体之一。
【单选题】What is the real meaning of 'birthday breakfast'?
A.
When it is an employee's birthday, the company will hold a breakfast together with all the people who work in the company.
B.
If one employee has a birthday in this month, he or she can go to the office of the president and talk with him for an hour and a half.
C.
The company will prepare a breakfast for the employee when it is his or her birthday.
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