简述我国行政管理学的发展。

(一)
材料1
我国石油、天然气人均剩余可采储量仅有世界平均水平的7.7%和7.1%。储量比较丰富的煤炭也只有世界平均水平的58.6%。早在十年前，我国就已经对节约能源进行了立法。近年来能源消耗急剧增长，供需矛盾日益突出，已经成为我国经济社会可持续发展的最大制约，直接威胁国家经济安全。与能源短缺形成强烈反差的是能源浪费惊人，我国能源利用效率只有33%，比国际先进水平低10个百分点左右。
材料2
2006年8月5日，国务院同意并公布了由环境保护总局、发展和改革委员会制订的《“十一五”期间全国主要污染物排放总量控制计划》。2007年11月下旬，国务院转发了国家发展和改革委员会、国家统计局和环境保护总局等部门制订的《单位GDP能耗统计指标体系实施方案》等三个方案和《主要污染物总量减排统计办法》等三个办法。12月，备受关注的《能源法》(征求意见稿)首次亮相，面向各界征求意见。

针对能源和污染问题，我国相关立法进程稳步推进，关于这方面的立法成果表述正确的是( )。

A．我国已经颁行了《节约能源法》

B．我国已经颁行了《能源法》

C．关于污染物排放控制，虽然没有制定法律，但国务院已经制定了相应的行政法规

D．1989年颁行的《环境保护法》已经不能适应保护和改善生活环境与生态环境的需要，应当抓紧修正

已知圆C₁的方程为x²+y²-4x+2my+2m²-2m+1=0．

（1）求实数m的取值范围；

（2）求当圆的面积最大时圆C₁的标准方程；

（3）求（2）中求得的圆C₁关于直线l：x-y+1=0对称的圆C₂的方程．

最可能的诊断是

A．肺结核

B．结节病

C．淋巴瘤

D．肺癌

E．硅沉着病(矽肺)

根据短文内容，从短文后的选项中选出能填入空白处的最佳选项。选项中有两项为多余选项。

     Lately, there is a rising trend in families choosing to homeschool their child than send their child to a

traditional educational institution. Let's look at some of the benefits of homeschooling.

     1. Flexible Schedule

     Homeschooling enables a flexible schedule. 1_____ With homeschooling, your child can start homeschooling at 9 am or later depending on your preferred schedule. You can schedule your child's homeschooling education

as you see fit with materials or subjects that may be not available in a traditional school.

     2. Individual attention

     With homeschooling, your child gets all the individual attention. For example, if your child is weak in maths,

you could devote more time and energy to teaching maths.

     Your child's homeschooling schedule can be adjusted for that. For example, if your child is better at science

than at maths, simply devote more homeschooling hours to maths and cut back on science. With

homeschooling, the choice is yours. 2_____

     3. Family Activity

     The schooling of the child can become an extended family activity. Examples are field trips and experiments.

Plus, the child also receives more quality time with his/her parents. 3_____ The child is also free of any negative

peer pressure or influences.

     4. 4_____ 

     With homeschooling, the child does not need to prove his/her abilities to other children. Parents are able to

plan the learning program according to his strengths and weakness.

     Parents can also change the curriculum to suit the learning style of the child. 5_____ Some children even

learn better from experiencing or seeing things in action.

A. No peer pressure

B. Religion Learning

C. Traditional schools can't do that.

D. There is more time for family bonding.

E. For example, the child needn't wake up at 7 every morning.

F. Plus, it is quite impossible to provide individual attention to all students.

G. For example, some children learn better from reading while others need to write.

信息资源服务系统的特点描述错误的是（）

A、信息存储量大

B、对查找速度、查全率和查准率要求一般

C、提供多种查找途径、方法和多种形式的查找结果

D、百度提供了信息资源服务