题目: 若拋物线y2=2px(p>0)的焦点到准线的距离为4,则其焦点坐标为( )A.(4,0)B.(2,0)C.(0,2)D.(1,0) 答案: 答案:B根据抛物线焦点到准线的距离为p,求得p,进而根据抛物线性质可得焦点坐标.解:根据抛物线焦点到准线的距离为p,∴p=4,故焦点为(2,0).故选B
题型:选择题 (天津市河东区201 4年高三二模考试)4.--lt was really an exciting match yesterday. But you missed it. -____.1 got there ten minutes before it ended.A.Not at allB.Not exactlyC.Not especiallyD.Not really 查看答案
题型:单项选择题 某分行一年内已处理的抵债资产总价(列账的计价价值)为5000万元,一年内待处理的抵债资产总价(列账的计价价值)为1亿元,已处理的抵债资产变现价值为2000万元,则该分行该年抵债资产处置率为( )。A.55%B.50%C.35%D.25% 查看答案
题型:选择题 Will he have ______ to tell me? [ ]A. something important B. anything importantC. important something D. important anything 查看答案