皮皮学，免费搜题
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【单选题】
患者,男性,50岁。因下肢静脉曲张入院。检查时嘱其站立,待下肢静脉曲张充盈后,在大腿上1/3扎止血带,嘱其反复下蹲3-5次,结果显示曲张静脉充盈度减轻。上述检查结果提示A.
交通支瓣膜功能不全
B.
交通支瓣膜功能正常
C.
大隐静脉瓣膜功能不全
D.
下肢深静脉通畅
E.
下肢深静脉瓣膜功能不全
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皮皮学刷刷变学霸
举一反三
【单选题】Thank you for all your hard work last week. I don’t think we ______ it without you.
A.
could have managed
B.
can manage
C.
could manage
D.
can have managed
【单选题】锚泊中，当负责值班的驾驶员发现船舶走锚时，下列说法错误的是：（） Ⅰ、出现危险局面时，应果断地采取一切有效措施，以避免或减少损失 Ⅱ、出现危险局面时，应首先报告船长，在船长到驾驶台之前不采取一切措施，以避免扩大损失 Ⅲ、出现危险局面时，应首先报告船长，在征得船长允许后，果断地采取一切有效措施，以避免或减少损失
A.
Ⅰ、Ⅱ、Ⅲ
B.
Ⅱ、Ⅲ
C.
Ⅰ、Ⅱ
D.
Ⅰ
【单选题】Thank you for all your hard work last week. I don’t think we ______ it without you. [ ]
A.
could have managed
B.
can manage
C.
can have managed
D.
could manage
【单选题】— Could I have another cup of coffee, Daddy? —_____ It will be hard for you to go to sleep tonight if you do.
A.
Better not.
B.
Why not?
C.
What for?
D.
As you wish.
【单选题】．---I give up. It’s too hard. ---Really? I__________you could make it through.
A.
think
B.
thought
C.
have thought
D.
am thinking
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