外研版（三起）（2012）小学英语四年级下册Module 7 Unit 1 I helped Mum.教案(5)

外研版（三起）（2012）小学英语四年级下册Module 7 Unit 1 I helped Mum.教案(7)

外研版（三起）（2012）小学英语四年级下册Module 7 Unit 1 I helped Mum.教案(8)

外研版（三起）（2012）小学英语四年级下册Module 7 Unit 1 I helped Mum.教案(9)

Teaching plan for Unit 3 I Aims Demands Get the students (1)to comprehend the text of Section A 2)to have a good grasp of the following points: ups and downs be /get involved with; hold work out: go through; for a time i met with all along; upon/on doing sth subsequently(consequently): harbor; see.as; at one's worst; why do/ not do sth; buy time; never too adj. to do sth

I/O设备是计算机系统必不可少的组成部分,IO能力的强弱 是评价计算机系统性能优劣的重要指标。计算机系统通过硬 件接口和O控制程序对ⅠO设备进行控制,使之协调、有效地 完成I/O操作

人教新目标Go For It!（2012）初中英语九年级全册Unit 2 I think that mooncakes are delicious！Section A习题(2)

Binary-search-tree sort 7∈ b Create an empty Bst for i=i to n do trEe-INSert(,AiD) Perform an inorder tree walk of t Example:

ynamic order statistics OS-SELECT(i, S): returns the i th smallest element in the dynamic set S. OS-RANK(, S): returns the rank ofx E S in the sorted order of s s elements IDEA: Use a red-black tree for the set S, but keep subtree sizes in the nodes

a weakness of hashing Problem: For any hash function h, a set of keys exists that can cause the average access time of a hash table to skyrocket An adversary can pick all keys from tkeU: h(k)=i for some slot i IDEA Choose the hash function at random independently of the keys