感染过程中最少见的表现形式是（） A.健康携带者 B.潜伏期携带者 C.慢性携带者

阅读理解。

     A wise teacher once told me that every teenager needs to experience a not-so-fun first job from

working at a grocery store to the fast food industry.

     Now I still remember my first day at a fast food restaurant three years ago. I wanted to save up

money and buy my own car, so I applied everywhere I could that summer. The restaurant called me right

away and I thought to myself, this is going to be easy. Within four hours of my first shift (轮班), I had

angry customers who complained how slow I was. I watched in fear as a kid spilled his milk everywhere,

and I heard the words that no 16-year-old boy or anyone for that matter wants to hear:"Mike, there's a

problem in the men's bathroom and you might want gloves for this one." I realized right away that working at the restaurant was not going to be a picnic. The manager expected a clean environment and, particularly, fast service with a friendly smile.

     Over three years later I still work at that restaurant whenever I go home during vacations. I love my

co-workers there and all the customers know who I am. Every morning the same senior citizens come in

and get their morning coffees. They chat with us workers and joke around. Our smiles have just as much

to do with them making us a part of their everyday lives as the coffee does.

     From my first job at the restaurant, I learned teamwork and devotion. I also learned staying positive

no matter how rough things seem to get. I will forever carry the experience that I gained at the restaurant

with me as I go forward in my life.

1. Why did the author apply everywhere that summer? (No more than 12 words)  (2 marks)

   __________________________________________________________________________

2. What did the manager particularly expect the workers to do? (No more than 14 words)  (3 marks)

  ________________________________________________________________________

3. Why does the author still work at the restaurant during vacations? (No more than 13 words)  (2 marks)

 ________________________________________________________________________

4. What did the author learn from his first job? (No more than 13 words)  (3 marks)

____________________________________________________________________________

转动机械连续启动不允许超过（）次。

对直线的扫描转换算法中，下列说法正确的是（）

A.Bresenham算法主要是通过借助于一个决策变量d的正负符号，来确定下一个该亮点的象素点。

B.Bresenham算法中决策变量的计算式与上一次决策变量的正负无关。

C.DDA算法主要利用整数进行计算，其效率较高。

D.DDA算法不需要计算直线的斜率，但Bresenham算法需要。

压力容器起用前的基本准备工作是什么？

希特勒和纳粹祭起的旗帜不包括（）。

A.民族复仇主义

B.反犹太主义

C.反 * * 主义

D.反独裁