【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】A large number of people are _____, and how can the local government ignore the problem?
【单选题】It can be inferred that the attitude of the WHO and the British government toward the use of mobile phones is ______.
【多选题】编译程序各阶段的工作都涉及到_______,_______。
【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