如图为生物的分类等级示意图.其中亲缘关系最近的是( )
A.狼与犬
B.狼与狮
C.猫与虎
D.猫与狮
答案:A
We can't complain that children are cheating in examinations ______ adults themselves have set such a bad role model for them to follow.
A.because
B.unless
C.when
D.though
女性,70岁。下楼时不慎摔伤右髋部,查体:右下肢短缩,外旋50°畸形,右髋肿胀不明显,但有叩痛
选择哪种治疗最合适()
A.皮牵引治疗
B.髋人字石膏固定
C.骨牵引治疗
D.股骨粗隆间截骨术
E.人工股骨头置换术