【判断题】纳税人是按税法规定直接负有纳税义务的单位和个人,因此,纳税人与税 . 负人是同一个人。
【简答题】已知一元二次方程x 2 +px+q+1=0的一根为2. (1)求q关于p的关系式; (2)求证:抛物线y=x 2 +px+q与x轴有两个交点; (3)设抛物线y=x 2 +px+q的顶点为M,且与x轴相交于A(x 1 ,0)、B(x 2 ,0)两点,求使△AMB面积最小时的抛物线的解析式.
【多选题】电控动力转向系统根据动力源不同分为( )。
【简答题】Maximum foreign talk, even participation, ( ) , and ( ) are the four characteristics which are common in successful speaking tasks.
【简答题】已知一次函数图象经过点(-2,5)并且与y轴相交于点P,直线y=- 1 2 x+3与y轴相交于点Q,点Q恰与点P关于x轴对称,求这个一次函数的解析式.
【简答题】已知一元二次方程x 2 +px+q+1=0的一根为2。 (1)求q关于p的关系式; (2)求证:抛物线y=x 2 +px+q与x轴有两个交点; (3)设抛物线y=x 2 +px+q的顶点为M,且与x轴相交于A(x 1 ,0)、B(x 2 ,0)两点,求使△AMB面积最小时的抛物线的解析式。
【单选题】When designing speaking tasks, we must follow the principles except__________.
【单选题】Sometimes, if the students lack too much vocabulary, the task which is designed will become frustrating and the students are likely to give up or revert back to the native language. It is known as( )...