—Mum, can we go to the art museum tomorrow?

—Sure. But first we should find out ________.[ ]

A. what can we do

B. where we can go

C. how can we go there

D. if it will be open

患者女，20岁，50kg，因高空坠落致右肱骨干、双下肢股骨干骨折，多处软组织挫伤急诊入院。查BP70／30mmHg，HR130次／分，Hb9．8，HCT29％。

应选择哪种麻醉方法（）

A.局部麻醉

B.臂丛神经阻滞

C.椎管内麻醉

D.全身麻醉

E.神经安定镇痛