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【判断题】
中脉压（CVP）：正常值为0.39～1.18KPa（4～12cmH 2 O），CVP过低，常表示血容量不足或静脉回流障碍；CVP过提示输血输液过多，或存在心功能不全。A.
正确
B.
错误
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反馈参考答案：
举一反三
【判断题】The building blocks of competitive advantage are efficiency, quality, innovation and customer responsiveness.
A.
正确
B.
错误
【简答题】SEM 相对于 TEM 有哪些特点?
【单选题】Because of the theatre performances, the area around Piccadilly and Leicester Square tube stations gets crowded______.
A.
before seven-thirty
B.
between seven and eight
C.
at about eight o'clock
D.
from seven-fifteen to eight
【单选题】London to others because of______ .
A.
its shape
B.
its structure
C.
its color
D.
its building material
【简答题】A．Paper towels, napkins, bags and boxes. B．Art books and other high-quality printed matter. C．Insulation for basements. D．Imitation wood.
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