试题与答案

在观察血液分层实验时,防止血液凝固的方法是[ ] A.在血液中加入少量食盐 B.

题型:选择题

题目:

在观察血液分层实验时,防止血液凝固的方法是[ ]

A.在血液中加入少量食盐        

B.将血液置于冰水中冷却    

C.在血液中加入少量柠檬酸钠    

D.将血液在常温下搁置一段时间

答案:

答案:C

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第II卷(共21分)

第四部分:写作(共两节,满分21分)

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