第2题: [单项选择]男,30岁,右侧乳突区疼痛2天,口角向左歪斜1天。最有助于定位诊断的体征是() A. 双侧皱额和眼睑闭合情况 B. 双侧面部痛觉 C. 张口时下颌偏斜方向 D. 伸舌偏斜方向 E. 双侧肢体肌力比较 参考答案:A 答案解析:根据题干信息,该患者应首先考虑到面神经受损的可能。面神经受损可分为周围性和中枢性损害两种,一侧面神经周围性(核或核下性)损害时,病侧额纹减少、眼裂增大、鼻唇沟变浅,不能皱额、闭眼,微笑或露齿时口角歪向
A. It used to suffer from food shortages. B. It used to be a grain-producing area. C. It used to depend on foreign aid. D. It used to be close to Russia. 参考答案:B 答案解析:[听力原文27-28] Officials in Russia say it will send at least 200,000 tons of grain to Ukraine wh