1975年,()上市政府国民抵押协会低押凭证期货合约,成为世界上第一张利率期货合约。
查看答案
A dog is a more demanding pet than a cat because _ .
[ A] it must be trained so that it won ' t bite
[ B ] it demands more food and space
[ C]it needs more love and care
[ D] it must be looked after carefully
经过骨牵引治疗1周后复查,X线片示两处骨折复位均较差此时最好的;治疗方法是
A. 调整牵引角度和牵引重
B. 改用小夹板外固定
C. 小夹板外固定+骨牵引
D. 手法复位~卜双侧髋人字石膏外固定
E. 切开复位内固定