患者,男,40岁,头痛、呕吐、近三天症状加重,检查视乳头水肿,下列情况最可能的是()
A. 脑震荡
B. 颅内压增高
C. 蛛网膜下隙出血
D. 颅内动脉瘤
E. 高血压性脑病
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When navigating a vessel,you().
A. Can always rely on a buoy to be on station
B. Can always rely on a buoy to show proper light characteristics
C. Should assume a wreck buoy is directly over the wreck
D. Should never rely on a floating aid to maintain its exact positio
在全电路中,负载电阻增大,端电压将()。
A. 降低
B. 升高
C. 不变
D. 不确定
人工挖孔桩混凝土护壁的厚度不宜小于()
A. 80m
B. 90m
C. 100m
D. 120m