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【多选题】
下列哪些数据库可以查找学位论文A.
维普期刊全文库
B.
CNKI 中的优秀硕博士论文库
C.
Proquest Central
D.
万方数字资源系统的学位论文库
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反馈参考答案：
举一反三
【单选题】The correct description of the aorta is ()
A.
Part of aortic arch root goes out of left and right coronary arteries
B.
The aorta continues to separate the main trunk of brachiocephalic artery
C.
The following sequence of the aorta is thoracic aorta → abdominal aorta → internal iliac artery and external iliac artery → middle recommended artery → middle caudal artery
D.
All of the above
E.
Aortic regurgitation with atrium
【简答题】333333333333
【单选题】The aorta can keep relatively stable in the cardiac cycle, the main reason is that the large artery ( )
A.
Has a high level of blood pressure.
B.
Has a fast velocity.
C.
Has a small blood resistance.
D.
Has thick vessel walls.
E.
Has dilatancy and elasticity.
【单选题】W： How long can I keep the book? M：______________
A.
Yes. You can keep it.
B.
No. I’m afraid you should return it now.
C.
Three weeks. But you can renew it if you need it for a longer time.
D.
You can take it at any time you want.
【简答题】333333333333
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