中极位于脐下（）。A、4寸 B、3寸 C、2寸 D、1寸 E、0.5寸

从业务运作实质来看，福费廷是一种（）。

A.银行保函

B.保付代理

C.质押贷款

D.远期票据贴现

阅读理解

     "Our aim is to take our art to the world and make people understand what it is to move," said David

Belle, the founder of parkour(跑酷).

     Do you love running? It is a good exercise, yet many people find it boring. But what if making your

morning jog a creative one? Like jumping from walls and over gaps, and ground rolls? Just like the James Bond in the movie Casino Royale? Bond jumps down from a roof to a windowsill and then runs several

blocks over obstacles on the way. It is just because of Bond's wonderful performances that the sport has

become popular worldwide.

     Yes, that's parkour, an extreme street sport aimed at moving from one point to another as quickly as

possible, getting over all the obstacles in the path using only the abilities of the human body. Parkour is

considered an extreme sport. As its participants dash around a city, they may jump over fences, run up

walls and even move from rooftop to rooftop.

Parkour can be just as exciting and charming as it sounds, but its participants see parkour much more

than that.

     Overcoming all the obstacles on the course and in life is part of the philosophy(理念) behind parkour. This is the same as life. You must determine your destination, go straight, jump over all the barriers as if

in parkour and never fall back from them in your life, to reach the destination successfully. A parkour

lover said, "I love parkour because its philosophy has become my life, my way to do everything."

     Another philosophy we've learnt from parkour is freedom. It can be done by anyone, at any time,

anywhere in the world. It is a kind of expression of trust in yourself that you earn energy and confidence.

1. Parkour has become popular throughout the world because of _____.

A. its founder, David Belle

B. the film, Casino Royale

C. its risks and tricks

D. the varieties of participants

2. The underlined word "obstacles" in Paragraph 2 is closest in meaning to "_____".

A. streetsB. objects

C. barriersD. roofs

3. Which of the following is true of parkour?

A. It challenges human abilities.

B. It is a good but boring sport.

C. It needs special training.

D. It is a team sport.

4. As its participants move around a city, _____.

A. they can ask for help

B. they may choose to escape

C. they should run to extremes

D. they must learn to

鼓轮修磨操作的第一步是（）。

A、检查鼓轮磨损程度

B、对正并固定鼓轮与修磨机

C、初步装载鼓轮于修磨机

D、以上均正确

根据损伤的部位、范围和肝损伤的病理分类，将肝破裂分为______、______和真性破裂三种。

孔的最小极限尺寸与轴的最大极限尺寸的代数差为负值叫（）。

A.过盈值

B.最小过盈

C.最大过盈

D.最小间隙