问题题干答案解析相关问题热门问题最新问题

问题详情

方程36x2+25y2=800的曲线是（　　）

A、椭圆

B、双曲线

C、圆

D、两条直线

时间：2021-07-17 20:30 关键词：学历教育成人高考 2012年成人高考高起点《数学（文）》冲刺模拟试卷（二）

答案解析

A

相关问题

boost的意思是:help or encourage to increase or improve
eloquent的意思是:fluent or persuasive in speaking or writing
A campus emergency ______ occur at any time of the day or night, weekend, or holiday, with little or no warning.
Mainly east 3 or 4 partly cloudy to overcast occasional rain（）slowly south moderate or good.
（）any case or suspected case of quarantinable disease，or any case of eruptive disease or any death be discovered，the local quarantine officer must be notified immediately．