冷冻保藏法需在()体积分数下的甘油中-50℃保藏
A、0.2
B、0.3
C、0.35
D、0.45
参考答案:A
—What is the news about?
—According to the new law, people who are guilty of drunken driving ________ face a fine of up to 2000 yuan.
A.will
B.may
C.shall
D.can
患者,男,20岁,因施工塌方压伤右前胸引起胸痛、呼吸困难,前胸有一块胸壁软化区,并见反常呼吸运动,X线检查示右侧4~8肋骨骨折,但无血气胸。急救措施应首先选择( )
A.肋间神经阻滞及骨折处封闭B.给氧C.支气管扩张剂D.固定胸壁E.使用呼吸兴奋剂