2016年成人高考高起点每日一练(7月25日)
1、 ( )
A.相切
B.相离
C.相交
D.内含
2、 两个函数y=ax+b和Y=bx在同一坐标系中的大致图象只能是 ( )
A.如图所示
B.如上图所示
C.如上图示
D.如上图
3、图4-5中三种气候分布于欧洲西部同一纬度,以下叙述正确的是( )
A.三地点中③地的气温年较差
B.三地点均属于温带海洋性气候
C.三地点中②的时问早
D.三地点中①的海拔
4、通读下面的短文,回答题。
Recently, some scientists decided to find out what the funniest joke in the world was. This wasclearly a (an) 21 task,as no two people ever really agree about what is funny and what is not--22 when they are from different 23 .
Telling jokes is something people often 24 around the world. 25 , jokes are sometimes not funny to or are often not 26 by people who are not part of that culture(文化).
Anyhow, 27 a year-long serious study, the scientists 28 the funniest joke in the world :Two hunters (猎人) are out in the woods. One of them 29 to the ground. He doesn' t seemto be 30 , his eyes closed. The other hunter takes out his phone and calls emergency (紧急)services. "My friend is dead!"he 31 to the man on the other side. "What can I do?"The man,in a(an) 32 voice,says," Dont' t worry. I can 33 . First, make sure he' s 34 . "There isa silence,then a shot is 35 . Bang! The hunter' s voice comes back on the line. He says," OK,now what?"
________
A.wonderful
B.important
C.interesting
D.Difficult
5、
I can' t__________you that I' 11 be able to come,but I' 11 do my best.
A.promise
B.ask
C.answer
D.advise
6、
如果a,b,c成等比数列,那么函数f(x)=ax2+bx+c的图像与x轴的交点个数是
A.0个
B.恰有一个
C.2个
D.不能确定
7、
有两种金属的混合粉末15 g,加入足量的盐酸,充分反应后,在标准状况下得到11.2 L H2,则下列各组金属中肯定不能构成上述混合物的是( )
A.Mg和Al
B.Mg和Ag
C.Mg和Zn
D.Al和Fe
8、下列各句中,加点的成语使用恰当的一句是( )
A.他在国内体育界和社会上知名度都极高,在国际上也有较大影响,堪称炙手可热的名人。
B.美国政府准许石油公司在阿拉斯加天然公园里钻井的决定,引起国际环保组织怨声载道。
C.这部刚获得梅花奖的剧本深刻地揭示了新与旧、美与丑、文明与野蛮等错综复杂的矛盾。
D.对于房价在全国略胜一筹的北京来说,经济适用房的低价位无疑对工薪阶层具有巨大的吸引力。
填空题
9、函数f(x)=x3-6x2+9x在区间[-3,3]上的值为 .
简答题
10、有两个质量均为m的相同小球,其中A球静止在长为21、高为h的光滑水平桌面的中间,如图7-9所示.另一小球B以速度v与A球做完全弹性碰撞.求碰撞后球A落地时两球的总动能和两球的水平距离.