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【单选题】
在队列研究中,下列哪一项不属于偏倚控制的内容
A.
在设计时制定严格的纳入和排除标准
B.
抽样时采用误差较小的抽样方法
C.
在实施阶段尽量提高研究对象的应答率
D.
在测量暴露和结局时尽量利用客观指标
E.
在分析阶段可以采用分层分析
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【单选题】口底、颌下和颈部的急性蜂窝组织炎可并发
A.
菌血症
B.
脓毒血症
C.
化脓性海绵状静脉窦炎
D.
喉头水肿
E.
吞咽困难
【单选题】企业与政府间的电子商务,简称()。
A.
B2B
B.
B2C
C.
B2G
D.
G2C
【单选题】企业与政府间的电子商务简称为( )。
A.
C2C
B.
B2C
C.
B2G
D.
B2B
【单选题】Man: I had a hard time getting through this novel. Woman: I share your feeling. Who can remember the names of 35 different characters? Question: What does the woman imply?
A.
She has learned a lot from the novel.
B.
She also found the plot difficult to follow.
C.
She usually has difficulty remembering names.
D.
She can recall the names of most characters in the novel.
【单选题】The company is going to do some promotions on .
A.
new products
B.
old stock
C.
both A and B
D.
popular products
【单选题】1954年《中华人民共和国宪法》明确规定我国的政体是( ) 。
A.
人民代表大会制
B.
各革命阶级联合专政
C.
民族区域自治
D.
政治协商制度
【单选题】被称为“童话诗人”的朦胧诗人是()
A.
北岛
B.
食指
C.
舒婷
D.
顾城
【单选题】Let us assume, for the moment, that labor m not prepared to work for a lower money-wage and that a reduction in the existing level of money-wages would lead, through strikes or otherwise, to a withdra...
A.
a fall in the value of the existing money-wage would lead to a withdrawal of labor
B.
a rise in the price of wage-goods would lead to a withdrawal of labor
C.
the demand of labor is for a rise of existing money-wage
D.
the demand of labor is for reduction in the value of real wages
【多选题】数控屏幕上菜单词汇的与中文词汇“进给”无关的英文( )。
A.
SPINDLE
B.
FEED
C.
EMERGENCY STOP
D.
COOLANT
【单选题】The company is going to do some promotions on .
A.
new products
B.
old stock
C.
both a and b
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