为扩大农村消费需求，拉动经济增长，国务院实行了对“家电下乡”给予财政补贴的政策。这种

遭遇意外险情与伤害时，需要____________，要学会运用______________的救助方法。

下列各句中，划线的成语使用恰当的一项是(　　)

A．对于这座神秘的古代墓葬，专家们希望能从漫无边际的史料中找到一些关于它的蛛丝马迹。

B．从长辈们的闲言碎语中，他了解到父亲乔明志曾经是一位屡立奇功、威名赫赫的抗日英雄。

C．在44年的记者生涯中，他创作了一批优秀的新闻作品，在中国新闻史上留下了浓墨重彩的一笔。

D．市场调查发现，国内一些商家销售的红木家具质量良莠不齐，有关部门提醒消费者选购时要谨慎。

The summer I was ten,my mother decided to bring us to the world of art.My brother and I were not very excited when we realized what my mother meant.What she meant was not that we could take drawing classes or painting classes but that we would have to spend one afternoon a week with her at the Fine Arts Museum.Before each visit to the museum,she made us read about artists and painting styles(风格).It was almost as bad as being in school.Who wants to spend the summer thinking about artists when you could be with your friends at the swimming pool?

First we had to read about ancient Egyptians(古埃及人)and their strange way of painting faces and then go to look at them at the museum.My 12-year-old brother thought this was so funny,but I was not interested.Later we had to learn about artists in the Middle Ages who painted people wearing strange long clothing.We had to look at pictures of fat babies with wings and curly(卷曲的)hair and with no clothes on flying around the edges of paintings.I certainly couldn’t see what was so great about art.

On our last visit to the museum,something happened when I saw a painting by a woman called Mary.In it,a woman was reading to a child.The colors were soft and gentle,and you could tell by the mother’s expression how happy she was just to be with the child.I couldn’t stop looking at this painting!I wanted to see every painting Mary had ever made!It was really worth looking at so many paintings to find a painter who could interest me so much.

小题1:The aim of the mother’s plan was to ________.

A．take them to visit the museum

B．introduce them to the world of art

C．ask them to read about artists

D．show them different painting styles小题2:What was the writer’s experience in the museum before the last visit?

A．She came to feel her mother’s love.

B．She liked many paintings.

C．She hardly enjoyed herself.

D．She could understand the pictures of fat babies.小题3:What made the writer go through a change that summer?

A．One of Mary’s paintings.

B．A strange way of painting.

C．Artists in the Middle Ages.

D．Her mother’s instruction.小题4:From the text,we can see________.

A．the importance of curiosity

B．the effect of art

C．the value of learning

D．the power of family education

各类误码字节所检测路由的具有一定的覆盖关系，所以通常情况下B1误码会引起B2、B3，B2误码会引起（）和（）误码，B3会引起（）误码。

某工程双代号时标网络计划如下图所示，其中工作B的总时差和自由时差（）周。

A．均为1

B．分别为2和1

C．分别为4和1

D．均为4