膝关节脱位合并十字韧带断裂后,表现为阳性的检查是()。
A.研磨试验
B.抽屉试验
C.侧向试验
D.旋转提拉试验
E.“4”字试验
参考答案:B
.Shortly after we .the chairman took his place and declared the meeting open .
A.sat ourselves
B.seated down
C.were seated
D.seated
影响地方性氟中毒发病的因素不包括()
A.摄氟量
B.性别
C.营养条件
D.生活饮食条件
E.个体差异