皮皮学，免费搜题
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搜题
【单选题】
机械制图图中的尺寸标注应按（）A.
图中图形大小标注
B.
机件的实际大小尺寸标注
C.
图中图形比例标注
D.
机件加工后大小标注
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参考解析：
知识点：
皮皮学刷刷变学霸
举一反三
【判断题】The main vasoactive metabolites of coronary are adrenosine, lactate, and hypoxia.
A.
正确
B.
错误
【单选题】the structure of maintaining the high osmolarity in the renal medulla is
A.
vasa recta
B.
proximal tubule
C.
distal convuluted tubule
D.
Henle's loop
E.
collect duct
【单选题】What are the functions of secondary metabolites?
A.
Used to attract animals to pollinate the plant and to disperse its seeds
B.
Protecting the plant from herbivores such as insects
C.
Used to derive medicine
D.
All of the above
【简答题】How does the author explain the unidirectional flow of metabolites?
【单选题】the structure of maintaining the high osmolarity in the renal medulla is
A.
proximal tubule
B.
distal convuluted tubule
C.
Henle's loop
D.
vasa recta
E.
collect duct
【单选题】In the microcirculation, which of the following structures is mainly regulated by local metabolites?
A.
Arterioles
B.
Microvenous
C.
blood capillary
D.
Precapillary sphincter
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