女,47岁,左眼球突出伴视力下降半年,MRI平扫及增强扫描见眶内占位性病变,最可能的诊断是()
A.眼眶内血管瘤
B.视神经胶质瘤
C.脑膜瘤
D.炎性假瘤
E.未见异常
参考答案:A
“纱厂热”的主要致病物质为()
A.二氧化硅
B.棉纱
C.细菌内毒素
D.蛋白酶
E.鞣酸
____ the teacher expected, the students were very excited after hearing the good news.
A.As
B.So
C.What
D./