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问题 单项选择题

肢体抬高试验(Buerger试验)结果阳性主要用于确诊哪种疾病

A．原发性下肢深静脉瓣膜功能不全

B．单纯性大隐静脉曲张

C．深静脉血栓形成

D．动静脉瘘

E．血栓闭塞性脉管炎

答案

参考答案：E

选择题

Do you have _______ to tell us? [ ]

A. some things new

B. new something

C. anything new

D. new anything

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选择题
—Can I help you?
—I'd like three ________ shoes for my daughters.


A. pairs of
B. pair of
C. pair
D. ／
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