【简答题】将形体连同确定其空间位置的直角坐标系,用平行投影法,沿S方向投射到选定的一个投影P上,所得到的投影称为轴测投影图,按照投射线对投影面是否垂直,可将轴侧投影分为 和 。
【单选题】在下述结论中,正确的是( )。 ①只有一个结点的二叉树的度为0; ②二叉树的度为2; ③二叉树的左右子树可任意交换; ④深度为忌的完全二叉树的结点个数小于或等于深度相同的满二叉树。
【单选题】听力原文:M: Excuse me, can you tell me how I can get to the Government Building? W: Of course, go straight for two blocks, and then look to the right. What does the woman mean?
A.
The man needs to continue walking.
B.
The man needs to go straight back for two blocks.
C.
He has already passed the building.
D.
The building is to his right.
【单选题】一定质量的理想气体等压膨胀,下述结论中正确的是 ( )
B.
气体对外做的功在数值上等于它从外界吸收的热量
C.
气体从外界吸收的热量在数值上等于其热力学能的增加与对外界做功之和
D.
气体向外界放出的热量在数值上等于其热力学能的减少
【单选题】566 模拟通信系统与数字通信系统与数字通信系统主要区别是()。
【单选题】. 两个班级联合举行联欢或游艺活动属于那种组织方式()
【简答题】阅读以下程序并填写结果,用16进制数表示。 MOV CL , 4 MOV AX , [2000H] SHL AL , CL SHR AX , CL MOV [2000H] , AX 若指令执行前,数据段内(2000H) = 09H , (2001H) = 03H , 则程序执行完后, (2000H) = ,(2001H) =
【单选题】It can be understood from the passage that______.
A.
the Mauritius' Government specialized in printing stamps
B.
stamp collectors are searching for stamps with mistakes
C.
the local printer was instructed to make a mistake in the stamp
D.
Mauritians printed stamps to make money