最低下降高度是指（）
A、进行精密进近时的进近界限高度
B、进行非精密进近时的进近界限高度
C、以上都对
参考答案：B
______ the works of Leonardo da Vinci, the Louvre Museum has more than 6,000 other European paintings, ranging from the13th century to the 19th century.
A．Except for
B．Except
C．In addition
D．Apart from
再植肢体出现严重肿胀、缺血时间较长时的首要措施为( )
A．局部按摩
B．局部冷敷
C．深筋膜切开减压
D．高压氧治疗
