某大厦内的配电室设在地下一层，建筑面积600m2，内部设置自动报警系统、气体灭火系统

二叉排序树的存储结构定义为以下类型：
typedef int KeyType;
typedef struct node
KeyType key; /*关键字项*/
InfoType otherinfo; /*其它数据项*/
struet node*lchild,*rchild; /*左、右孩子指针*/
BSTNode,*BSTree;
阅读算法f33，并回答问题：

(1)对如图所示的二叉排序树T，写出f33(T,8)返回的指针所指结点的关键字；
(2)在哪些情况下算法f33返回空指针
(3)简述算法f33的功能。
BSTNode*f33(BSTree T,KeyType x)
BSTNode*P;
if(T==NULL)return NULL;
p=f33(T—＞lehild,x);
if(p!=NULL)return p;
if(T—＞key＞x)return T;
return f33(T—＞rchild,x);

下列反应中不属于氧化还原反应的是

A．NO＋NO₂＋2NaOH==2NaNO₃＋H₂O

B．NH₃＋HCl== NH₄Cl

C．Br₂＋2KI==I₂＋2KBr

D．2H₂O₂==2H₂O＋O₂↑

British people eat less fruit and vegetables than other people in Europe. As a result,  British now has one of the worst heart disease __16.______(record) in the world., and each year more and more people have other health problems such as _17_____(be) too fat. Also, children eat much _18.______(little)fruit and vegetables than before. The government is very worried about that and has to do something to change it.

With the help of the government, _19______3-year Food Dude Program began _20_______ September, 2005. The program __21_____(start) by the University of Wales Bangor. It tries to help children eat more fruit and vegetables __22______in school and at home. Over 30,000 children from 150 primary shcools have joined the program. Children wathch the six parts of the Food Dudes cartoon over 16 school days. It's just long enough to get the children ____23____(eat) fruit and vegetables again and again until they begin to like the taste.

The results show that the program has been a great success, and will soon become popular around the world. Even the US and Canada take the Food Dudes Program very ___24____(serious) and in 2006 it ___25____(win) the World Health Organization best practice award.

罗天益的学术内容主要是（）

A、遣药制方论

B、相火论

C、对命门的阐发

D、对李杲脾胃学说的阐发

甲公司拥有乙公司60%的股份；拥有丙公司15%的股份。丙公司生产所需原材料全部由甲公司提供技术资料；甲公司派出总经理对丁公司进行日常管理，但超过200万元以上的投资均应通过董事会决定。在不存在其他因素的情况下，上述公司之间不存在关联方关系的有( )。

A．甲公司与丙公司

B．甲公司与丁公司

C．乙公司与丙公司

D．丁公司与其财务总监