皮皮学，免费搜题
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【单选题】
患者男,45岁。从事仓库保管员20年,双下肢内侧皮下静脉隆起、迁曲、星团块状,足靴区色素沉着,诊断为原发性静脉曲张。其病因不包括A.
长时间站立工作
B.
静脉壁薄弱
C.
从事负重工作
D.
工作环境寒冷
E.
静脉瓣膜发育不良
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参考解析：
知识点：
皮皮学刷刷变学霸
举一反三
【单选题】---Hey, look where you are going! ---Oh, I ' m terribly sorry.________. A. I ' m not noticing B. I wasn ' t noticing C. I haven ' t noticed D. I don ' t notice
A.
I'm not noticing
B.
I wasn't noticing
C.
I haven't noticed
D.
I don't notice
【简答题】Sorry. I ’ m not in charge here. So I can ’ t help you.
【单选题】I t is not thing you seem to imagine.
A.
a s easy a, as
B.
as an easy, as
C.
as easy a, than
D.
as an easy, than
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