简述被狗咬伤后伤口处理的要点。

阅读短文，选择正确答案。

      Now cities are full of cars. Some families even have two or more cars. Parking is a great problem, and so

is the traffic in the cities. Something will have to be done to change it.

      What will the cars of tomorrow be like?

      Little car may some day take the place of today's big cars. If everyone drives little cars in the future, there

will be less pollution in the air. There will also be more space for parking cars in cities, and the streets will be

less crowded. Three little cars can fit in the space now needed for one car of the usual size. 

     The little cars will cost much less to own and to drive. Driving will be safe, too. What is more, these little

cars can run about 65 kilometers per hour.

      Little cars of the future will be fine for getting around a city, but they will not be useful for long trips. If big

cars are still used along with the small ones, two sets of roads will be needed in the future. Some roads will be

used for the big, fast cars and other roads will be needed for the slower, smaller ones.

1. _______ is the big problem for those people who have cars. [ ]

A. Money

B. Parking

C. Driver

D. Waiting

2. Little cars in the futufe will bring _______ pollution in the air. [ ]

A. more

B. much

C. less

D. no

3. The little car's size may be _______ today's car's size. [ ]

A. one third of

B. two thirds of

C. as big as

D. as small as

4. People can _______ money with using the little cars. [ ]

A. spent

B. cost

C. take

D. save

5. The big cars are _______ the little cars for long trips. [ ]

A. as useful as

B. not so useful as

C. more useful than

D. less useful than

下列各种票据中，不属于《票据法》调整范围的有( )。

A．汇票

B．本票

C．发票

D．支票

2013年3月18日，甲机械公司与乙融资租赁公司接洽融资租赁某型号数控机床事宜，同年4月1日，乙按照甲的要求与丙精密设备公司签订了购买1台某型号数控机床的买卖合同。丁以乙的保证人身份在该买卖合同上签字，但合同中并没有保证条款，丙和丁亦未另行签订保证合同。乙和丙之间签订的买卖合同约定，机床价格为1200万元，乙在缔约当日向丙支付首期价款400万元，丙在收到首期价款后1个月内将机床交付给甲，乙在机床交付之后的8个月内，每月向丙支付价款100万元。

乙与丙签订买卖合同的当日，与甲签订了融资租赁合同，但该合同未就租赁期届满后租赁物所有权的归属作出约定。2013年5月1日，丙依约向甲交付了机床。

2013年8月8日，甲在未告知乙的情况下.以所有权人身份将该机床以市场价格出售给戊，戊不知甲只是机床承租人，收到机床后即付清约定价款。乙知悉上述情况后，以甲不是机床所有权人为由，主张甲戊之间的买卖合同无效，并主张自己仍为机床所有权人，要求戊返还机床。

2013年11月2日，由于乙连续3个月未支付机床价款300万元，丙要求乙一次性支付到期和未到期的全部价款共500万元，乙认为丙无权要求支付尚未到期的200万元价款，并拒绝支付任何款项。丙遂要求丁承担保证责任，丁予以拒绝，理由有二：第一，自己仅在买卖合同上以保证人身份签字，既无具体的保证条款，亦无单独的保证合同，因此保证关系不成立；第二，即使保证成立，因未约定连带责任保证，所成立的也只是一般保证，丙不应在人民法院执行乙的财产之前要求自己承担保证责任。

要求：

根据上述内容，分别回答下列问题：

丁与丙之间的保证关系是否成立？并说明理由。

测定含氟水样应是用（）贮存样品。

A.硬质玻璃瓶

B.聚乙烯瓶

电容器又称为容电器，可以加速（）变化的作用。

A.次级电流

B.初级电流

C.初级电阻

D.次级电阻