【简答题】(1)不等式组 3x-2>0 x-1≤0 的解集是______; (2)不等式组 2x+1>x 4x≤3x+2 的解集是______; (3)不等式组 x-4≤1 x+1 2 >2 的解集是______.
【简答题】解下列不等式(组). (1)解不等式 x 2 +1>x,并把它的解集在数轴上表示出来. (2)求不等式组 2x-1<3x+1 2x+1>x-2 x-4≤0. 的整数解.
【单选题】His idea was considered ______. which of the following ones is wrong ?
【单选题】Navigational charts are subject to frequent changes,the important ones of which are promulgated by ________ .
A.
Admiralty Notices to Mariners
【简答题】When it comes to parenting, it can be hard to know which issues are important and which ones are not. According to parenting expert Anne Murphy, a family dinner matters. “Having a family dinner doesn’...
【单选题】MEGA16单片机的INT0管脚具备中断触发功能的条件是( )
A.
单片机总中断打开,INT0中断使能,中断触发方式已经设置
B.
单片机总中断关闭,INT0中断使能,中断触发方式已经设置
C.
单片机总中断打开,INT0中断禁止,中断触发方式已经设置
D.
单片机总中断关闭,INT0中断禁止,中断触发方式已经设置
【简答题】解不等式组 x 4 < x+1 5 2-x≤0 并把解集在数轴上表示出来.