男,44岁,车祸伤及右侧眉弓和头部,当时右眼上、下睑青紫淤血,半月后右眼球结膜高度水肿视力下降,右眼球突出,CT检查如图,最可能的诊断为()
A.眶内静脉曲张
B.颈内动脉海绵窦段动脉瘤
C.海绵窦动静脉瘘
D.脑动静脉畸形
E.硬脑膜动静脉瘘
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选择合适的单词或词组填空。
besides, except, except for和but
1. He has nobody _____ himself to blame for that.
2. They all went to the Summer Palace _____ one.
3. Your essay is well written _____ one or two minor grammatical mistakes.
4. _____ his wife, his daughter also went to see him.
近视发生的主要原因不包括()。
A.遗传
B.学习负担过重
C.学习环境采光、照明条件差
D.姿势不良
E.营养不良
男性,20岁,半年前车祸,头部受伤昏迷。近3个月来,多饮,多尿,每日尿量超过6000ml
下列检查可能出现异常的是()
A.血糖
B.尿比重
C.甲状腺功能
D.肾功能
E.肝功能
计算100×99-99×98+98×97-97×96+…+4×3-3×2+2×1=______.
二次回路识图原则是什么?