下列各数中两组数相等的是（ ） A．89.00与98.00 B．909.09与909

为测定某电源内阻r和一段电阻丝单位长度的电阻R₀，设计如图所示的电路。ab是一段粗细均匀的电阻丝，R是阻值为2Ω的保护电阻，电源电动势为6V，电流表内阻不计，示数用I表示，滑动片P与电阻丝有良好接触， aP长度用L表示，其它连接导线电阻不计。实验时闭合电键，调节P的位置，将L和与之对应的I数据记录在下表。

实验次数	1	2	3	4	5
L（m）	0.10	0.20	0.30	0.40	0.50
I（A）	1.78	1.39	1.14	0.97	0.84
1I（A－1）	0.56	0.72	0.88	1.03	1.19

（1）画出1/I-L图像；

（2）写出1/I-L的关系式，式中涉及到相关物理量用字母表示（E、r、R、R₀）________________

（3）从图中根据截距和斜率，求出该电源内阻r为_______Ω；该电阻丝单位长度的电阻R₀为_________Ω/m。（结果保留两位小数）

金税三期总体规划将建立全国应用大集中架构，下列描述中属于其关键特征是（）。

A.建立以总局为主.省局为辅的网站群，支撑两级纳税服务平台，提供24小时不间断服务

B.建立总局网络发票开具.查验中心，并与核心业务系统实现信息共享

C.省局不再部署任何预处理系统

D.税收数据从总局同步到省局，建立两级数据管理.分析.决策支持平台

完形填空。

Our school has a weekly "Parents View" program. Around four years ago, I   1   a call from the headmaster to come to the"Parents View" talk the next morning. After the call I became very nervous and anxious. Many    2   thoughts were coming. One of them was to call the headmaster with   3   and tell him that I could not come.    4   , I gathered some courage. I thought,   5   I missed this opportunity, surely the school would never   6   me again to any of their programs. So, I   7   to go and speak.      When my turn came and I started speaking, my heartbeat increased and my mouth went   8   . I wasn't even able to read the written speech   9   . I was not   10   of where I was standing and what I was reading.      After my speech, I met with the headmaster and   11   what happened to me. He told me that this happened to everyone. Even great   12   faced the same things when they started. He   13   that I come again.      I prepared a topic of talk for the next occasion. This time I was somehow comfortable but not very confident. Afterwards, I met with the headmaster again and told him about the  14   I felt I had made. He was   15   enough to invite me again, but this time to give a  16  to the teachers.      I prepared and practiced day and night. With the blessing of God, this went very well and was   17   by the headmaster as well as the teachers because they knew where I started from. They encouraged and praised my   18  .      After delivering this presentation successfully, I became  19   . I learned that everything is possible if we have   20   to take the first step.

( )1. A. received    ( )2. A. serious    ( )3. A. fear      ( )4. A. Fortunately  ( )5. A. though    ( )6. A. invite       ( )7. A. refused    ( )8. A. hot      ( )9. A. properly   ( )10. A. sick     ( )11. A. argued    ( )12. A. speakers   ( )13. A. commanded   ( )14. A. story     ( )15. A. kind       ( )16. A. message    ( )17. A. scolded    ( )18. A. faith      ( )19. A. popular    ( )20. A. aims       B. made      B. negative      B. excitement    B. Finally     B. until      B. take       B. offered     B. dry         B. carefully   B. afraid      B. proved      B. teachers    B. suggested    B. mistake             B. honest   B. suggestion    B. appreciated         B. choice   B. special         B. luck    C. accepted    C. deep             C. regret       C. Actually    C. because         C. bring           C. decided      C. open               C. cheerfully    C. fond            C. explained      C. parents           C. requested    C. trouble            C. stubborn     C. presentation      C. instructed       C. results     C. confident      C. chances    D. gave              D. sudden          D. delight           D. Obviously         D. if              D. send             D. pretended        D. full            D. actively          D. aware             D. concluded        D. students        D. demanded          D. progress       D. eager            D. comment        D. corrected        D. efforts          D. famous            D. courage

下面程序段的输出结果是( )。
public class Test
public static void main(String args[])
int a, b;
for(a=1, b=1; a＜=100; a++)
if(b＞=10) break;
if (b%2==1)
b+=-2;
continue;


System.out.println(a);

A．5

B．6

C．7

D．101

闪烁计数器主要由那几部组成？