检验检疫证单的法律效力由出入境检验检疫机构的法律地位决定。()
参考答案：对
四肢长管状骨骨折的治疗原则
GM cannot be used as an indicator of stability at all angles of inclination because（）.
A.M is not fixed at large angle
B.there is no M at large angles
C.G is not fixed at large angles
D.there is no G at large angles
