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【判断题】
连接电线可以在换轨前拆除,也可以在换轨后拆除。( )A.
正确
B.
错误
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反馈参考答案：
举一反三
【单选题】When he applied for a______ in the office of the local newspaper he was told to see the manager.
A.
location
B.
promotion
C.
commission
D.
position
【单选题】When he applied for a______in the offices of the local newspaper, he was told to see the manager.
A.
work
B.
position
C.
career
D.
duty
【简答题】曲线 与 所围成的图形的面积是 。
【单选题】下列关于正确退出WINDOWS系统描述错误的是
A.
单击开始菜单中的关机按钮
B.
按下主机电源开关直接关闭计算机
C.
在关闭计算机之前应退出所有程序和保存好所需的数据
D.
在正确退出系统后断开主机电源，然后再关闭外部设备电源
【单选题】When he applied for a______ in the office of the local newspaper he was told to see the manager.
A.
location
B.
profession
C.
career
D.
post
【简答题】When he applied for a ________ in the office of the local newspaper he was told to see the manager. A) location B) profession C) career D) position
【单选题】When he applied for a ______ in the office of the local newspaper，he was told to see the manager．
A.
position
B.
profession
C.
career
D.
location
【简答题】所围面积为S的闭曲线长与所围同一面积S的圆周长之比值，称为该闭曲线的弯曲度． 等腰梯形ABCD(AD∥BC)，若AD=2a，∠BAD=α，欲使其弯曲度最小，梯形之形状如何？
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