骨髓腔或骨孔出血的止血方法是
A．钳夹止血B．结扎止血C．温热盐水纱布压迫止血D．骨蜡填充压迫止血E．药物止血
参考答案：B
---- I wonder you will water this kind of flower.
---- Every other day.
A．how often
B．how long
C．how sooner
D．how much
岩层产状的三个要素是( )。
A．倾向
B．走向
C．斜率
D．倾角
E．曲率
