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【单选题】
如图，圆 的半径为定长 ， 是圆 外一个定点， 是圆上任意一点，线段 的垂直平分线 和直线 相交于点 ，当点 在圆上运动时，点 的轨迹是（ ）A.
圆
B.
椭圆
C.
双曲线
D.
抛物线
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反馈参考答案：
举一反三
【单选题】'Agro-pessimism' refers to
A.
a new crop with more harvest.
B.
a sort of psychological disorder.
C.
contradiction between humans and nature.
D.
fear that humans will starve to death.
【单选题】Amy was trying to persuade her father to let her drive but she was getting _______.
A.
wrong
B.
nowhere
C.
right
D.
here and there
【单选题】The central premise of most of Irvings fictions is_____.
A.
Hardship of poor people
B.
disorder between various people
C.
children's experiences under the strange and uncomfortable circumstances
D.
rebellion of youth against their parents
【简答题】Amy was trying to persuade her father to let her drive but she was getting _____.
【单选题】John is _____ honest boy. He said he would come here in _____ hour. [ ]
A.
a; a
B.
a; an
C.
an; a
D.
an; an
【简答题】自助餐用餐时要 遵守 排 队 取菜、 循序取菜、 (______) 、 (______) 、 (______) 、积极交际等礼仪规范。
【简答题】如何通过控制面板卸载某个应用程序,比如qq?
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