【单选题】在Windows系统中,用鼠标拖动非最大化窗口的标题栏可以( )。
【单选题】She prefers to ____ hot water rather than _____ ice-cream.
【简答题】在平面直角坐标系中,点0是坐标原点,四边形ABCD为菱形,AB边在x轴上,点D在y轴上,点A的坐标是(一6,0),AB=10. (1)求点C的坐标: (2)连接BD,点P是线段CD上一动点(点P不与C、D两点重合),过点P作PE∥BC交BD与点E,过点B作BQ⊥PE交PE的延长线于点Q.设PC的长为x,PQ的长为y,求y与x之间的函数关系式(直接写出自变量x的取值范围); (3)在(2)的条件下,...
【单选题】I prefer water rather than drink wine.
【简答题】It is important that people who have dull jobs find outside interests to keep boredom ______ bay, rather than turn to drinking or smoking.
【简答题】已知直线y=x+6交x轴于点A,交y轴于点C,经过A和原点O的抛物线y=ax 2 +bx(a<0)的顶点B在直线AC上. (1)求抛物线的函数关系式; (2)以B点为圆心,以AB为半径作⊙B,将⊙B沿x轴翻折得到⊙D,试判断直线AC与⊙D的位置关系,并说明理由; (3)若E为⊙B优弧 上一动点,连结AE、OE,问在抛物线上是否存在一点M,使∠MOA︰∠AEO=2︰3,若存在,试求出点M的坐标;若不...
【单选题】I prefer to have a hamburger rather than________a glass of milk. [ ]
【单选题】It is important that people who have dull jobs find outside interests to __________ boredom __________, rather than turn to drinking or smoking.
D.
have been kept …at bay
【简答题】已知:直线y=x+6交x、y轴于A、C两点,经过A、O两点的抛物线y=ax 2 +bx(a<0)的顶点在直线AC上。 (1)求A、C两点的坐标; (2)求出抛物线的函数关系式; (3)以B点为圆心,以AB为半径作⊙B,将⊙B沿x轴翻折得到⊙D,试判断直线AC与⊙D的位置关系,并求出BD的长; (4)若E为⊙B优弧 上一动点,连接AE、OE,问在抛物线上是否存在一点M,使∠MOA:∠AEO=2:3?...
【单选题】--I prefer to have a hamburger rather than _______ a glass of milk. --Hamburgers? You'd better not eat __. It's junk food.