皮皮学，免费搜题
登录
搜题
【单选题】
圆心在曲线 y= 3 x (x＞0) 上，且与直线3x+4y+3=0相切的面积最小的圆的方程为（ ）A.
(x-2 ) 2 +(y- 3 2 ) 2 =9
B.
(x-3 ) 2 +(y-1 ) 2 =( 16 5 ) 2
C.
(x-1 ) 2 +(y-3 ) 2 =( 18 5 ) 2
D.
(x- 3 ) 2 +(y- 3 ) 2 =9
拍照语音搜题，微信中搜索"皮皮学"使用
参考答案：
参考解析：
知识点：
皮皮学刷刷变学霸
举一反三
【单选题】It's our duty to trees and flowers. [ ]
A.
watering
B.
look for
C.
take care
D.
look after
【单选题】Waste paper shouldn't ______ everywhere. It's our duty to keep our classroom clean. [ ]
A.
be thrown
B.
throw
C.
is thrown
D.
are thrown
【单选题】Which of the following will NOT be held for the event as celebration according to the clip?
A.
The local residents’ celebration in India.
B.
The local residents’ celebration in Hollywood
C.
The official governor’s ball.
D.
The Academy’s post-Oscars party.
【单选题】Which of the following is NOT the principle of the Kwanzaa celebration?
A.
Purpose.
B.
Creativity.
C.
Unity.
D.
Politeness.
【简答题】屈原是我国春秋时期哪国人？
【单选题】Waste paper shouldn't _____ everywhere. It's our duty to keep our city clean. [ ]
A.
be thrown
B.
Throw
C.
is thrown
D.
are thrown
相关题目：