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【单选题】
气态毒物进入呼吸道的深度与下列哪种因素有关A.
劳动强度
B.
毒物的水溶性
C.
毒物的脂溶性
D.
肺通气量
E.
肺血流量
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反馈参考答案：
举一反三
【单选题】Children in school are ______into different levels of grades，according to how much they know.
A.
combined
B.
classified
C.
listed
D.
clarified
【单选题】Education, with recreation, is what some film makers want to put into their films.
A.
combining
B.
combined
C.
to combine
D.
having combined
【单选题】When it comes to suing doctors, Philadelphia is hardly the city of brotherly love. A combination of sprightly lawyers and sympathetic juries has made Philadelphia a hotspot for medical-malpractice law...
A.
are over-confident of their social connections in daily life.
B.
benefit a lot from their malpractice insurance premiums.
C.
are more likely to be sued for their medical-malpractice.
D.
pay less than is required by law to protect themselves.
【单选题】In the author's opinion, real self-esteem usually comes from meeting worthwhile goals combined with ______.
A.
hard work
B.
positive praise
C.
severe criticize
D.
realistic feedback
【多选题】考虑到影响抽样误差的因素,减少抽样误差可以从以下几个方面着手( )
A.
正确确定样本数量
B.
准确选择样本类型及抽样形式
C.
加强对抽样调查的组织领导，提高抽样调查工作的质量
D.
努力降低总体中个体的差异程度
【简答题】Combi驱动器上的屏蔽端子的作用是( )
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