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【多选题】
离心泵的工作包括A.
吸水过程
B.
压水过程
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举一反三
【单选题】What are the three classes of factors that influence perception?
A.
factors in the setting, factors in the environment and factors in the motives
B.
factors in the perceiver, factors in the target and factors in the situation
C.
factors in the character, factors in knowledge and factors in experience
D.
factors in the personality, factors in the character and factors in the values
【单选题】61%of ulcer risk seems to be caused by
A.
unknown factors．
B.
economic factors．
C.
environmental factors．
D.
genetic factors．
【简答题】People speak of 'push' and 'pull' factors concerning migration. Push factors are associated with the place of origin. It could be difficulty in finding a suitable job, war, or famine. Pull factors are...
【单选题】在PowerPoint2003中，通过“插入”菜单下“图片”子菜单中的“来自文件”命令插入的图片，其默认位置是( )。
A.
幻灯片的左上角
B.
幻灯片的上方
C.
幻灯片的中心
D.
幻灯片的右下角
【多选题】Some factors that affect child growth and development, these factors include:( )
A.
Heredity
B.
Nutyrition
C.
prenatal environment
D.
Illness and psychosocial factors
E.
hormones
【单选题】在PowerPoint2003中插入Flash动画时，可通过插入（）控件对象来完成。
A.
Label
B.
TextBox
C.
Shockwaver Flash object
D.
CommandButton
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