广西自然旅游资源有哪些种类？

根据材料内容选择最佳答案，并将其标号填入题前括号内。

Dear Darcy,

     I have braces (牙套), so it's important that I brush my teeth. But I don't like to brush my teeth at all. Do you have any ideas for how to make me enjoy brushing? 

                                                                                                   —Annoying in Gainesville 

    Darcy: A few changes should help you feel better about brushing. Start by getting a new toothbrush in your

favorite color. A tasty toothpaste might make you smile.

Dear Darcy,

    My best friend has moved to the countryside and I'm finding school really hard without him. What shall I do?

                                                                                                   —Lonely in Los Angeles 

    Darcy: Face the situation bravely! What's more important, try to be friendly and find other kids that share

your interest. That way you and other kids will have much to talk about. Sure you'll make new friends with

each passing day.

Dear Darcy,

    My friend's birthday is coming soon. I want to give her something special but I haven't got enough money

and I'm not good at making things. What's your advice, please? 

                                                                                                   —Anxious

    Darcy: When your friend knows what you're thinking, I think she will be happy. Does your friend mind how

much money you will spend on the gift? Write a letter to her or buy her a gift with the money you can afford.

A true friend never cares how much a gift costs.

Dear Darcy,

    I listen to your program every night. I also have a problem. My cousin's dog has just had babies and I really

want to have one for a pet. My parents won't allow the baby dog in! I really need your help. 

                                                                                                   —Helpless in Seattle

    Darcy: Your parents sure have their reasons for not having a pet. Maybe they don't have time looking after it.

So have a talk with them and make them believe you can be a good pet owner.

1. According to Darcy, he who               is easier to make new friends. [ ]

A. likes writing letters to her

B. takes good care of himself

C. can share his interest with others

D. buys special gifts for others

2. Helpless in Seattle has a problem that             . [ ]

A. she has no money to buy a dog

B. she can't find her dog

C. she has no time looking after her dog

D. she can't have a dog at home

3. There is no information in the text about where               comes from. [ ]

A. Helpless

B. Anxious

C. Annoying

D. Lonely

4. Darcy most probably works at              . [ ]

A. a school

B. a hospital

C. a radio station

D. an airport

5. We can learn from the text that              . [ ]

A. they have the same problem

B. Annoying will change her braces

C. Anxious won't buy an expensive gift

D. Lonely also moves to the countryside

材料一 近年来四川农村居民收入和消费情况

注：按照国际上的划分标准，恩格尔系数处于40％～50％为小康，30％～40％为富裕。

（1）概括上述材料所反映的江苏农村居民消费状况，并指出造成2011年江苏农村居民恩格尔系数回升的可能原因。（12分）

材料二 当前，油价高涨、交通拥堵、环境污染、能源短缺等问题凸显，汽车消费者日趋理性，提倡环保消费和前瞻消费。这种新的消费观念催生出低油耗、低排放、一车多能的时尚新车型，并逐步引领汽车消费的新趋势。

（2）结合材料二，运用《经济生活》中消费对生产的反作用的知识，分析消费新趋势对汽车行业的影响。（15分）

下述实验室检查结果中，最能说明慢性肾衰竭患者已进入尿毒症期的一项是()

A．血肌酐升高

B．高磷血症

C．低钠血症

D．低谢性酸中毒

E．低钙血症

左冠脉血流量达最高峰是在（）

A.等容舒张期

B.等容收缩期

C.舒张晚期

D.快速射血期

E.舒张早期

关于血浆中[H]、[HCO]与[Ca]之间的关系叙述正确的是（）

A.[H]增高，[Ca]下降

B.[H]增高，[Ca]增高

C.[HCO]增高，[Ca]增高

D.[HCO]下降，[Ca]下降

E.[H]下降，[Ca]增高