右股骨干上1/3骨折患者,其牵引治疗时的最好体位是
A.水平牵引
B.髋关节前屈位牵引
C.内收位牵引
D.外层位牵引
E.大腿外旋外展,髋屈曲位牵引
参考答案:E
以下哪项不属于金融衍生品服务( )
A.利率互换
B.货币互换
C.期货
D.银行卡业务
It is reported that two spacecrafts will ________ with each other in orbit.[ ]
A. link up
B. line up
C. pile up
D. tie up