问题 填空题

按照逻辑结构分类,结构可以分为线性结构和非线性结构,栈属于______。

答案

参考答案:线性结构

解析:数据的逻辑结构是指数据元素之间的逻辑关系,分为线性结构和非线性结构,常见的线性结构有线性表、栈和队列等,常见的非线性结构有树、二叉树等。

阅读理解

Clarissa looked out of the taxi window at the wet road. It was still raining. She was looking forward to getting home after a busy and tiring week in Italy.

The taxi stopped outside the terminal and Clarissa got out. While she was finding some money in her purse, the driver took out her luggage. She picked up her suitcase and entered the terminal building. The British airways check—in desk was near the entrance. After checking in her luggage, she went to buy some magazines. Then she went through passport control and the security check.

After waiting in line with other passengers, Clarissa walked down the corridor and onto the plane. Her seat was next to the window. While the plane was taking off, she closed her eyes, but when the plane was in the air, she began to relax. She pressed the button at the side of the seat, lay back and opened her eyes again.

Pin! The sound of the bell woke Clarissa from her dreams. “Ladies and gentlemen, we are now approaching Heathrow. Will you fasten your seatbelts and extinguish all your cigarettes.”

When the plane landed and came to a standstill, Clarissa saw that outside the sun was shining and the sky was clear. It was going to be a perfect day.

小题1: When in Italy Clarissa was ______.

A.airsick

B.sick

C.seasick

D.homesick小题2: Choose the right order when Clarissa went back home.

a. She waited in line for a while.   b. She passed through the airport control.

c. She took a taxi to catch her plane.

d. She bought some magazines to read in the plane.

e. She went through the check - in desk. 

f. she went through the security-check door.  g. She went aboard the plane.

A.c,e,d,b,f,a,g

B.c,f,d,e,a,b,g

C.d,e,f,b,g,e,a

D.a,c,d,e,b,f,g小题3:When the plane took off or before the plane was in the air, Clarissa was probably __  .

A. glad         B. anxious         C. nervous         D. relaxed

小题4: We know from the text ______.

A.before the plane took off, smoking was not allowed.

B.just before landing, people were asked not to smoke.

C.when the plane took off and landed, smoking was not allowed.

D.smoking was not allowed all the way to Heathrow.

判断题