一架飞机从北京一直向北飞，最终可以（ ） A．到达南极点 B．到达北极点 C．回

阅读理解。

                                                                  Never give up

      Since I was young, my mother has always spent lots of time sitting be-hind a sewing machine (缝纫机)

with a happy look on her face. For all the three kids in our family, she has made all the clothes.

      My mother makes it look so easy, but the first time I tried to make something, I just couldn't do it. I

worked too quickly, and when I finished, it looked bad. Soon, I just gave up.

      This summer, I really wanted to make a dress to wear at a party. I picked out some nice cloth, and I

found a nice style in a book. I got so excited about sewing that I couldn't even sleep.

       I started early the next morning. My mother was at a meeting, so if I had questions, there could be no

one to ask.

       I started sewing slowly and carefully, and I tried to do everything right. When I was sewing the top, I

made the neck too small. But the rest was fine.

      "I finally made it!" I shouted two hours later. And it fit! For the first time, I couldn't wear something I

had made with my own hands!

      If you want to learn something, my advice is: Don't give up when you can't do it well. Start with

something easy, and try your best.

1. How many children are there in the writer's family?

    __________________________________________________________

2. Why did the writer want to make a dress that summer?

    __________________________________________________________

3. Did her mother help her to make the dress?

    __________________________________________________________

4. What was the small problem about her dress?

    __________________________________________________________

5. What's the writer's advice? 

    __________________________________________________________

有关现场开通气道的手法中仰头抬颏法，错误的是（）

A.平卧于硬板床或地上

B.头颈偏向一侧

C.托起下颌骨使头充分后仰

D.放松衣领

E.颈椎损伤患者禁忌仰头

当客户要求理财规划师对原理财方案进行修改时，需要客户以书面形式证明修改是按照客户要求进行的。（）

下颌升支内侧隆突阻滞麻醉后，病人出现张口困难，发热可能是（）

A.血肿所致

B.操纵不当感染所致

C.正刺入下齿槽神经干

D.注射过快

E.注射针未抵骨面进入腮腺内

如果表中一个字段不是本表的主关键字，而是另外一个表的主关键字或候选关键字，这个字段称为______。