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【单选题】
叶片泵在工作中,其旋转方向由( )决定
A.
电机旋转方向
B.
油泵规定旋转方向
C.
顺时针方向
D.
逆时针方向
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【简答题】钻头的刚性和精度都较差,故钻削加工精度低,一般尺寸精度为 ,粗糙度为 。
【单选题】图示电路中流过 电阻的电流应为 答( )
A.
A
B.
A
C.
A
D.
A
【单选题】Reductions in overseas government expenditure took place, but______ and more gradually than now seems desirable.
A.
reluctantly
B.
unwittingly
C.
impulsively
D.
anxiously
【单选题】Excel2010 中,以下 操作一定不能够改变当前工作簿中显示的工作表数。
A.
从“文件”菜单打开“选项”对话框,在其“常规”选项卡中进行改变
B.
插入或删除工作表
C.
复制或移动工作表
D.
隐藏工作表
【单选题】0ur plan is to allocate one member of staff to handle appointments.
A.
ask
B.
persuade
C.
assigns
D.
order
【单选题】在纯电阻电路中设i =ImsinωtA。则U=( )V。
A.
Um sinωt
B.
Um sin(ωt +90°)
C.
Um sin(ωt -90°)
D.
Um sin(ωt -180°)
【单选题】● The parties to government procurement refer to the principal entities of all kinds that enjoy rights and undertake obligations in government procurement, including the procuring entities, the __(75)...
A.
users
B.
servers
C.
producers
D.
suppliers
【单选题】不可能发生的进程状态转换是 ( ) 。
A.
就绪 → 运 行
B.
运行 → 就绪
C.
就绪 → 阻塞
D.
阻塞 → 就绪
【单选题】_____ 查看材料
A.
suggested
B.
proposed
C.
signalled
D.
persuaded
【单选题】It is believed that there’s little chance that mankind would _____ a nuclear war.
A.
stand      
B.
persuade  
C.
transform survive
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