ISDN技术指的是( )。A．高速光纤网络技术 B．无线数字网技术 C．智能网

政府的权利，是指政府在社会管理和公共服务过程中形成的得到人民认可的威望和公信力。区别有权威政府和无权威政府的根本标志为 [ ]

A、政府官员是否由人民选举产生

B、政府是否站在公民的利益立场上

C、政府的管理和服务是否被人民自觉认可和接受

D、政府是否自觉接受人民的监督

规定的化学形式放射性活度占放射性药物总放射性活度的百分数，称为（）。

A.放射性核纯度

B.放射化学纯度

C.化学纯度

D.放射性活度

E.放射性比活度

根据句意写单词（每题0.5分，共10分）

1 The students are busy _______(复习)for the exam.

2 He had got full marks and the teachers were ___________(满意) with him..

3 If you get up early, try not to _________(打扰)your neighbours..

4 My mother has worked in this company since she left ______(大学).

5 Do you know who ________(发现)America?

6 Keeping _________(日记)can help you remember things well.

7 I’d like to find someone to talk about their strange _________(行为).

8 Mr Wu always spends lots of time _______(解释)things to us.

9 The doctor ________(建议)my father to give up smoking three years ago.

10 Suzy brought ___________(气球)of all colours..

11 We held the 29^th Olympic Games _________(成功)in 2008.

12 The _______(领导)of our school are all hard-working.

13 There is a lot of information ________(可获得的)here. Anyone can get some if he needs.

14 He was careless enough to make so many ________(错误).

15 It’s said that we will be _________(分开)into 2 groups.

16 People all over the world love ________(和平）.

17 –What do you think of Simon? ----He is very _________ because he never shows off in front of others.

18 I asked him to help me with the work, but he _______.

19 There is something wrong with my computer. I will have it _________ this afternoon.

20 Nobody is _________ to smoke here because the sign says “No Smoking”.

试述社会福利与工资的主要区别。

测量一个信号强度小于2A正弦波信号电流具体数值，正确的仪表选择是（）

A.直流电流表，量程是2A

B.交流电流表，量程是5A

C.交流电流表，量程是2A

D.以上全部