自海关总署向担保人发出履行担保责任的通知之日起，知识产权权利人向海关申请扣留侵权嫌疑

在一个童话故事里，狮子每逢星期一、二、三撒谎，老虎每逢星期四、五、六撒谎．某天狮子和老虎进行了一段对话．狮子说：“昨天是我的撒谎日．”老虎说：“昨天也是我的撒谎日．”根据以上对话，判断当天是星期______．

（10分）如图所示，一边长为a的正方形导线框内有一匀强磁场，磁场方向垂直于导线框所在平面向里，导线框的左端通过导线接一对水平放置的金属板，两板间的距离为d，板长l＝3d。t＝0时，磁场的磁感应强度从B₀开始均匀增加，同时，在金属板的左侧有一质量为m、电荷量为q的带正电粒子以初速度v₀沿两板间的中线向右射入两板间，恰好从下板的边缘射出，忽略粒子的重力作用。求：

（1）两板间的电势差；

（2）粒子从两板间离开瞬间，磁感应强度B的大小。

下列说法中，正确的是[ ]

①金属钠能在氯气中燃烧，生成白色烟雾 ②铜丝在氯气中燃烧，生成蓝绿色的氯化铜 ③点燃是使氯气跟氢气化合的唯一条件 ④氯气跟变价金属反应生成高价金属氯化物

A．只有②③

B．只有①②

C．只有①④

D．只有④

Roger Conner is a modern­-day Horatio Alger hero. Roger started out as an unpaid worker in a small flower shop. He has become the owner of a florist company whose sales are well over $100 000 a year.

One day when Roger was only twelve, he stopped at a local flower shop. He asked the owner if he could work for him, without pay, in order to learn the business. Roger started working every day after school and on weekends. After two years on the job, he finally asked for a small salary. The owners told him he “wasn't good enough to be paid.” So he quit, and found a paying job at another local flower shop. He worked hard there, but after six months they laid him off because business was slow.

Not discouraged, Roger decided to do it alone and started his own flower store in a basement in his town. He started his business with only sixty­-five dollars. He bought old refrigerators at garage sales and knocked the shelves out. This turned them into coolers for his fresh­-cut flowers. His business grew rapidly as he built up a reputation for top quality and fine service.

In 1977, Roger bought out the flower store where he had worked without pay for over two years. The people who said he “wasn’t good enough to be paid” were astonished to find that they were being taken over by a teenager. He had plans to renovate (振兴) the whole store.

One of the reasons the owners sold out to Roger was that the store wasn't doing well. But after Roger took over ownership and redid the store, business started booming. In fact, business was so good that after one year, he celebrated by buying out the other store where he had worked. Roger then combined both stores and moved to a location in the center of his town.

The new store has 2 000 square feet and seven employees. And he did it all before he reached the age of twenty.

小题1:The author is wants to show us that people who want to succeed in business should ________.

A．work without pay

B．own a flower shop

C．work hard and never give up

D．work as teenagers小题2:Which of the following is NOT true according to the passage?

A．He worked for two years without pay.

B．He needed luck to be successful.

C．He opened his first flower business in a basement.

D．He became successful before the age of twenty.小题3:The passage may be a ________.

A．newspaper report

B．humorous story

C．television play

D．scientific story小题4:The underlined part in Paragraph 2 probably means ________.

A．employed him

B．didn’t let him work there

C．paid him money

D．were proud of him小题5:From the passage, a “Horatio Alger hero” may be the kind of person who________.

A．works hard in the flower business

B．was born into a rich family

C．starts out poor and becomes rich

D．becomes famous as a result of good luck

轻钢龙骨是以镀锌钢带或薄钢板由特制轧机轧制而成，作为支架主要用于下列几个方面，哪个不正确（）

A. 可上人吊顶

B.不上人吊顶

C.悬挑阳台

D. 隔墙