题目
题型:不详难度:来源:
![](http://img.shitiku.com.cn/uploads/allimg/20191104/20191104055731-34293.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191104/20191104055731-92343.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191104/20191104055732-51827.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191104/20191104055732-70684.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191104/20191104055732-99180.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191104/20191104055732-30932.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191104/20191104055733-12980.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191104/20191104055733-17438.png)
答案
解析
![](http://img.shitiku.com.cn/uploads/allimg/20191104/20191104055731-34293.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191104/20191104055733-40260.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191104/20191104055732-51827.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191104/20191104055732-70684.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191104/20191104055733-22107.png)
核心考点
试题【若且,则向量与的夹角为( ) 】;主要考察你对平面向量数量积的意义等知识点的理解。[详细]
举一反三
![](http://img.shitiku.com.cn/uploads/allimg/20191104/20191104055726-17924.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191104/20191104055726-57343.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191104/20191104055727-76929.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191104/20191104055727-40701.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191104/20191104055727-42718.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191104/20191104055727-76929.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191104/20191104055719-57574.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191104/20191104055719-89239.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191104/20191104055719-77133.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191104/20191104055720-23199.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191104/20191104055720-62579.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191104/20191104055719-89239.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191104/20191104055720-42459.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191104/20191104055720-24037.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191104/20191104055721-71315.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191104/20191104055721-40388.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191104/20191104055721-25535.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191104/20191104055721-50822.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191104/20191104055722-63373.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191104/20191104055714-10545.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191104/20191104055714-93538.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191104/20191104055714-93538.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191104/20191104055714-10545.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191104/20191104055714-93538.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191104/20191104055714-10545.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191104/20191104055714-93538.png)
A.![]() ![]() | B.![]() ![]() ![]() |
C.![]() ![]() ![]() | D. (![]() ![]() ![]() ![]() |
![](http://img.shitiku.com.cn/uploads/allimg/20191104/20191104055709-35044.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191104/20191104055709-14836.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191104/20191104055709-97682.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191104/20191104055709-45581.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191104/20191104055709-83668.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191104/20191104055709-76738.png)
A.![]() | B.![]() | C.![]() | D.![]() |
![](http://img.shitiku.com.cn/uploads/allimg/20191104/20191104055701-49165.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191104/20191104055702-91042.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191104/20191104055702-48466.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191104/20191104055702-25726.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191104/20191104055702-11470.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191104/20191104055703-53850.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191104/20191104055703-61869.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191104/20191104055703-28771.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191104/20191104055703-28020.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191104/20191104055704-89818.png)
最新试题
- 1从大革命时期到抗日战争时期,中国革命的战略中心,依次从珠江流域转移到长江流域和黄河流域。其中实现从长江流域向黄河流域成功
- 2你认为专制主义和民主思想两个体系最初的理论分歧是( )A.国家是上帝的产物,还是人们契约的产物B.是继续封建割据,还
- 3下列式子正确的是( )A.49=±7B.(-7)2=7C.-49=7D.(-7)2=-7
- 4根据短文内容,从短文后的选项中选出能填入空白处的最佳选项。选项中有两项为多余选项。 If you want to kee
- 5虽然我国的扶贫开发工作成效显著,但我们应清醒地认识到,我国仍处于并将长期处于社会主义初级阶段,经济社会发展的总体水平还不
- 6用显微镜观察微小物体时,目镜上有“5×”。物镜上标有“45×”。观察到的物体的实际放大倍数是[ ]A.5倍
- 7现代社会能源得到了不断开发和利用,合理安全使用能源很重要。(1)下列物质中:①煤、②石油、③天然气、④氢气、⑤乙醇等,属
- 8下图文物出土于[ ]A.河南安阳B.河南洛阳C.湖北随州D.河南开封
- 9“嫦娥二号”于2010年10月1日18时59分57秒在西昌卫星发射中心发射升空,并获得了圆满成功。卫星上的信息_____
- 10小苏打、胃舒平、达喜都是常用的中和胃酸的药物.(1)小苏打每片含0.420gNaHCO3,2片小苏打和胃酸完全中和,被中
热门考点
- 1下列物质,属于有毒的有机物的是( )A.CH3OHB.COC.C2H5OHD.CH3COOH
- 2用大肠杆菌生产胰岛素,主要原因是 [ ]A.细胞小 B.结构简单 C.繁殖快D.易培养
- 3我国四大直辖市中,最年轻、面积最大的是( )A.北京B.重庆C.天津D.上海
- 42009年4月23日,胡锦涛主席参加了庆祝人民海军成立60周年的海上大阅兵。中国人民解放军建立的第一支海军是[
- 5He caught a bad cold. He ____on more clothes that day. [
- 6下图代表生活在同一生态系统中两个种群在夏季和秋季的食区范围。两个种群均以橡树为食,图中X所指部分最可能表明[ ]
- 7国家飞碟射击队用如图6—3—15所示装置进行模拟训练,被训练的队员在高H =" 20" m的塔顶,在地面上距塔水平距离为
- 8下图是一套实验室制取气体装置,用于发生、干燥、收集和吸收有毒气体,下列各组物质能利用这套装置进行实验的是 [
- 9已知实数x,y满足x2+y2+4y=0,则s=x2+2y2﹣4y的最小值为[ ]A.48 B.20 C.0
- 10已知为如图所示的程序框图输出的结果,则二项式的展开式中含项的系数是A.—6144B.192C.—6D.6144