Whth the kind－hearted boy ______ me with my work,I´m sure I´ll be able to spare
time ______ with your work.
| A．to help;help you out | B．helping;helping you |
| C．helped;to help you out | D．to help;to help you |
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和圆
相交于A，B两点，当线段AB最短时直线l的方程为________.
满足
，则
的最大值是________.
，则它的表面积为________.
是双曲线
的左右两个焦点，过点
与双曲线的一条渐近线平行的直线交双曲线另一条渐近线于点M，若点M在以线段
为直径的圆外，则该双曲线离心率的取值范围是
推荐套卷
Whth the kind－hearted boy ______ me with my work,I´m sure I´ll be able to spare
time ______ with your work.
| A．to help;help you out | B．helping;helping you |
| C．helped;to help you out | D．to help;to help you |
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