设备在检修时，没有必要严格执行停送电制度。

B The Ancient Olympic Games古代奥林匹克运动会
According to historical records，the first (1) Olympic Games can be traced back to 776 BC.They (2) dedicated to the Olympian gods and were staged on the (3) plains of Olympia.They continued for nearly 12 centuries， (4) Emperor Theodosius decreed in 393 A.D.that aU such"pagan cults" (5) banned.
The oldest myth which concerns the beginning of the (6) Games is that of Idaios Daktylos Herakles.According to other (7) ，Zeus，the father of humanity，fought and defeated Cronus in a (8) for the throne of the gods.Finally，the well-known (9) Herakles is mentioned who staged games in Olympia in honour (10) Zeus,because the latter had helped him conquer Elis when (11) went to war against Augeas.
Through the 12 centuries of (12) Olympic Games，many wonderful athletes competed in the stadium and (13) hippodrome of ancient Olympia’s sacred area，moving the crowds with (14) great achievements.Although mortal，their Olympic victories immortalised them.Of (15) best athletes who left their mark on the sacred vallev (16) Olympia，some surpassed all limits and became legends by winning (17) successive Olympic Games and remaining at the forefront of their (18) for more than a decade.
The ancient Olympic Games were (19) a one.day event until 684 BC.when they were extended (20) three days.In the 5th century B.C.，the Games were extended again to cover five days.

根据句意及所给中文提示或英文解释，写出句中所缺单词。

1. Children in the west usually wear  _________  (特殊的) costumes with masks at Halloween.    

2. Zhang Shaohan has a sweet  _________  (嗓音), and many of us like listening to her songs.   

3. People around the world love  _________ (和平) and hate wars.                              

4. As we know, _________  (星期一) is the second day of a week.                               

5. Sorry, I didn't follow you. Would you please speak more _________  (清楚地)?              

6. Now we are short of water and we should s_________  water in our daily life.               

7. Peter's father is very _________ (not free), so he does not have much time for his family.

成组设计两样本的秩和检验，确定检验统计量时（）

A.以秩和绝对值较小的作为T值

B.以秩和绝对值较大的作为T值

C.以样本量较大组的秩和作为T值

D.以样本量较小组的秩和作为T值

E.以上均不对

目前实用的（）骨干网是由高速光纤传输通道相连接的大容量（）路由器构成的。

A.数据；高端

B.核心；SDH

C.分组；共享

D.传送；交换

根据资料的来源，卫生服务调查可以分为（）和（）两大类。