皮皮学，免费搜题
登录
搜题
【简答题】
5 笛卡尔几何学的基本概念 (1)把下列各组的单词、词组与短语译成英语,并按它们的相关性联想记忆: (请把答案分两列,左列为汉语,右列为对应的英语) 解析几何 坐标 坐标原点 象限 直角三角形 单位长度 积分 (2) 汉译英: (请先在答案中粘贴下列的汉语原文) 当我们用一对数(a,b)来表示平面的点时,商定要把横坐标写在第一个位置上。 (3): (请在答案中先粘贴下列英语原文) If a moving circle touches a circle (x+2)^2+y^2 = 4 externally and touches a straight line x = 2, find the equation of the locus of the center of the moving circle.
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
【简答题】根据《税收征收管理法》的规定，税务机关征收税款时，必须给纳税人开具（ ）。
【简答题】NPN和PNP接近开关的区别在于什么?
【单选题】With all the audience ________, the speech began.
A.
sat
B.
seating
C.
seated
D.
having seated
【简答题】动脉血管壁一般分为______、______和______三层，其中大动脉的中膜以______为主，中动脉和小动脉的中膜以______为主。
【单选题】All of (the) performers in the play did (well). The (audience) applauded the (actors) excellent performance.
A.
the
B.
well
C.
well
D.
actors
【单选题】Eye contact with an audience, according to the author, has all the following benefits EXCEPT that it does not help the speaker ______.
A.
to control the audience
B.
to gain audience interest and esteem
C.
to know whether he is talking too much about a certain point
D.
to analyze his audience when he is beginning his speech
相关题目：