单项选择题

对于急性颅压增高有脑疝征象的患者应立即()

A.禁食
B.放脑脊液
C.吸氧
D.抗生素
E.快速静脉滴注高渗降颅压药物

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单项选择题
关于进行性血胸的诊断,下列说法不正确的是()

A.Hb、RBC反复测定呈进行性下降
B.经输血、补液,血压不回升或回升后又迅速下降
C.脉快,血压持续下降
D.24小时胸腔引流量达300ml
E.胸穿抽不出血,X线示胸膜腔阴影增大

单项选择题
With the increasing of environmental awareness,many green belts ()all over the country.

A.frowned at
B.frowned off
C.frowned down
D.frowned on

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