如图,在正方体中,分别为的中点,则图中五棱锥的俯视图为 A. 

如图,在正方体中,分别为的中点,则图中五棱锥的俯视图为

A        B        C        D

答案

C

相关题目

化简的结果是( ) A. - B. - C.D.   
化简的结果是( ) A. - B. - C.D.   
椭圆x2+4y2=1的离心率为( ) A.                    
椭圆x2+4y2=1的离心率为( ) A.                                                           B. C.                   
将1.5 g混有铜粉的镁粉投入100g稀硫酸中,至不再产生气泡为
将1.5 g混有铜粉的镁粉投入100g稀硫酸中,至不再产生气泡为止,共收集0.1 g气体。过滤后,向所得溶液滴入质量分数为10%的氢氧化钠溶液。开始滴入时
下列经线、纬线长度最长的是(     ) A.本初子午线    
下列经线、纬线长度最长的是(     ) A.本初子午线         B.180°经线            C.0°纬线      D.南北极圈
Weighing two hundred pounds        . A. she could not move the box   
Weighing two hundred pounds        . A. she could not move the box             B. the box could not move C. the box was too difficult to be moved     D. the box was too heavy f
下列关于细胞核的叙述正确的是 A.真核细胞的核膜上附有多
下列关于细胞核的叙述正确的是 A.真核细胞的核膜上附有多种酶,有利于多种化学反应的顺利进行 B.在电镜下观察分裂间期的真核细胞,可以看到细
已知偶函数f(x)在[0,+∞)上单调递减,且f(lgx)=f(1),则x的
已知偶函数f(x)在[0,+∞)上单调递减,且f(lgx)=f(1),则x的值等于________.
We made plans for a visit but _____ difficulties with the car prevented it.  
We made plans for a visit but _____ difficulties with the car prevented it.    A. consequent     B. subordinate C. substantial    D. subsequent  

最新题目