第12题: [单项选择]较稳定的股骨颈骨折是() A. 外展型 B. 内收型 C. 头下型 D. 粗隆间型 E. 颈基底部 参考答案:A 答案解析:股骨颈骨折线与两髂嵴连线夹角,称Pauwels角。角度越大,剪切应力越大,骨折越不稳定。依据Pauwels角分外展骨折(Pauwels角<30°)、内收骨折(Pauwels角>50°)。内收骨折属不稳
第31题: [单项选择]The chairman {{U}}proposed{{/U}} that we should stop the meeting. A. stated B. declared C. suggested D. announced 参考答案:C 答案解析:propose:建议;提议。suggest:建议。She suggested that he should adapt himself to his new conditions.她建议他应当适应新的