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【多选题】
血沉测定的影响因素有哪些?()
A.
温度:室温太低,血沉减慢,反之加快
B.
血沉管的倾斜度:测定时血沉管必须直立,垂直固定好
C.
抗凝剂:抗凝剂与血液的比例力求准确,血沉减慢,过多则加速?
D.
血沉管内径大小:一般不小于2毫米,否则减慢
E.
血液放置时间不超过2小时,否则减慢
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参考答案:
举一反三
【单选题】The author suggests that sex education classes
A.
are a major cause of casual, unprotected sex.
B.
should include the role of sex in a meaningful relationship.
C.
should not include the mechanics of fertilization and birth control.
D.
have taken over a role that rightfully belongs to parents.
【判断题】质量手册是为已完成的活动或达到的结果提供客观证据的文件。
A.
正确
B.
错误
【简答题】A. education that shouldn't be overlooked. B.Advantages of proper education. C.Different attitudes towards education. D.Cultural tradition and social customs about in China.
【简答题】刚性双原子分子的理想气体在等压下膨胀所作的功为 10J ,则传递给气体的热量为 _____ J 。
【简答题】刚性双原子分子的理想气体在等压下膨胀所作的功为 W ,则传递给气体的热 量为 __________ .
【单选题】All workers, regardless of their sex and education, are required to _____ at the age of
A.
resign
B.
retire
C.
regain
D.
retain
【简答题】DNA所处介质的离子强度越低 ,熔解温度越 ________ 。
【单选题】The concept of universal elementary education, regardless of sex, had been born, but it was still in the ________ of the single-sex school.
A.
realm
B.
terrain
C.
plateau
D.
latitude
【判断题】质量手册 是为已完成的活动或达到的结果提供客观证据的文件。
A.
正确
B.
错误
【单选题】Sex education is a sensitive area for some parents, and thus it should remain _________.
A.
random
B.
previous
C.
optional
D.
vital
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