与状态检修开展前相比，66千伏及以上断路器和的可用系数（）。A.持平 B.提高 C.

Tom is a little boy, and he is only seven years old. He often goes to the park and the fruit shop himself. Sometimes his mother takes him to the museum.

One day he goes to a cinema. It is the first time for him to do that. He buys a ticket and then goes in. But after two or three minutes he comes out, buys a second ticket and goes in again. After a few minutes he comes out again and buys a third ticket. Two or three minutes later he comes out and asks for another ticket. Then the girl in the ticket office asks him before giving him the ticket, "Why do you buy so many tickets? How many friends do you meet?" Tom answer, "No, I have no friends here. But a big boy always stops me at the door and tears(撕)my ticket into pieces."

小题1:Tom doesn't go to _______himself.

A．the park

B．the fruit shop

C．the museum

D．the cinema小题2:It is _____time for Tom to go to the cinema.

A．the first

B．the second

C．the third

D．the fourth小题3:How many tickets does Tom buy from the ticket office?

A．One.

B．Two.

C．Three.

D．Four.小题4:Which of the following sentences is true?

A．Tom goes to the cinema with some friends one day.

B．Tom goes to the cinema for some times.

C．Tom thinks the big boy lets him in after he tears the ticket.

D．Tom doesn't understand what the big boy does.小题5:The big boy in the cinema is_______.

A．a teacher

B．a worker

C．a seller

D．a student

《中国植被》将中国亚热带地区的针叶林划分为暖性常绿针叶林和（）两个植被类型。

在工程项目开工前，( )接受建设工程质量监督的申报手续，并对建设单位提供的文件资料进行审查，审查合格签发有关质量监督文件。

A．监督机构
B．建设部
C．当地政府
D．承包方

石器时代的陶工经常制造一些精致的瓷制的复杂的罐、工具和珠宝。他们也制造一些粗糙的陶制的小雕像。尽管许多被发现的精致的瓷制的罐、工具和珠宝几乎未受损，然而与瓷器同时制造的小雕像则几乎都变成了碎片。
下面哪一项，如果正确，最能够解释为什么只有如此少的小雕像，而有如此多的精致的瓷器被发现是未受损的( )

A．如果一批瓷器中的一个被打碎了，为了避免坏的运气，石器时代的人们总是故意打碎那批中剩余的陶瓷
B．陶土的成分(它影响陶制品的寿命)在世界不同地区的差别很大
C．陶器是在石器时代发明的，在精制瓷器所需技术产生以前人们已经熟练掌握了制陶技术
D．许多石器时代的祭祀要毁坏小雕像，这也许是对神的一种供奉

病鱼在感染水霉病初期的症状是（）。

A、肉眼看不见症状

B、鳞片局部脱落

C、皮肤有霉烂现象

D、皮肤外长满白毛