患者，女性，39岁。因肾衰竭行血液透析治疗，10天后突然畏寒、高热，血压70／40m

new mountain bike to ride to and from school or work?Be honest about your intentions,  and you're more

than half way toward choosing the right mountain bike for you.

     Visit your local bike shops.

     Any good bike shop will stock a wide range of quality mountain bikes in all price points and sizes.

Your local bike shops will carry more than one brand of bicycle.Not only will they sell you a mountain

bike that suits your needs,  but they will service what they sell.Visit at least a few shops.You'll get one

that satisfies you right away.

     Don't be bashful.

Tell your salesperson how you intend to use your new mountain bike,  and how much you are willing to

spend.Your salesperson will show you a selection of models and brands accordingly.He or she will also

help you determine the right size for you.You may ask more without any sense of shyness.

     Take a test ride.

     All good bike shops let customers take test rides.There's a good reason for this beyond

"trybeforeyoubuy" salesmanship.Since you already know your price range and find the right size,  you

now have to find out which brand you ride best.They want you to be happy with your purchase.After

only a few test rides from more than one bike shop,  the right mountain bike will choose you.

1. What would be the best title for the text?

A. How to Choose a Mountain Bike

B. How to Ride a Mountain Bike

C. Where to Ride Your Local Bike

D. Why to Take a Test Ride

2. The main purpose of visiting bike shops is________.

A. to share happiness with the salesperson

B. to seek a wide range of quality

C. to get a mountain bike that satisfies you

D. to service your new mountain bike

3. The underlined word "bashful" means________.

A. cold  

B. pitiful  

C. shy  

D. helpful

4. Which of the following is probably the author's attitude towards "trybeforeyoubuy" salesmanship?

A. Honorable.  

B. Favorable.  

C. Negative.  

D. Suspicious.