问题 单项选择题

关于分页式虚拟存储器的论述,正确的是 (17)

A.根据程序的模块性,确定页面大小
B.可以将程序放置在页面内的任意位置
C.可以从逻辑上极大地扩充内存容量,并且使内存分配方便、利用率高
D.将正在运行的程序全部装入内存

答案

参考答案:C

解析:
本题考查虚拟存储器的基本概念。分页式虚拟存储器的页面大小与程序的模块性无关,程序必须从每个页面的开始处存储,可以占满页或不占满一页。一般来说,正在运行的程序只有一部分可以调入内存,暂时不活动的部分则放在外存中,并根据程序运行情况,进行页面的调入和调出。这样就从逻辑上扩充了内存容量,并且使内存分配方便、利用率高。

阅读理解

American Watersports Tuesday-Saturday

Located on the beach of the Sea Gardens Beach Resort, there are fun things to

rent for the whole family. They offer rentals for kayaks, jet skis, and even parasail!

Enjoy the water up-close or from a bird’s eye view! No matter what activity you’re

enjoying, be sure to protect yourself and your family from the sun’s powerful rays and  apply plenty of sun block!

15th Street Boat Company Monday-Saturday

15th Street Boat Company offers rental boats of all kinds. They’re sure to have what you are looking for, whether it’s a small boat for a quick and simple outing or an extravagant boat with comfortable seats with a stereo and high tech navigation. You can rent a boat for half a day or a couple of days, or even weeks at a time. If you want it, they’ve got it. It’s fun for everyone!

Coconut’s Watersports 9am-5pm Monday-Sunday

Coconut’s Watersports is open 7 days a week and offers tons of water fun for the whole family. Jet Ski activities last 30 minutes or 1 hour and can make stops along the way. You must be at least 14 years of age to ride alone and can be as young as 3 to ride along with an adult. Everybody is required to wear a life jacket and a license is required to operate the Jet Ski. Bathing suits and shorts are recommended.

Jet Ski Tours of Miami 10am-7pm Thursday-Sunday

Jet Ski Tours of Miami includes onsite parking, indoor restrooms, lockers, and life jackets for participants. You may choose a one or two tour and each Jet Ski can hold up to 3 people. You must be at least 18 years old in order to ride. As long as you are accompanied by an adult, there is no age limitation for any passenger. There is a restaurant nearby to eat at. The tour visits 6 different islands and passes by Bayside and Hard Rock. You may even catch sight of dolphins, turtles or a crab resting in these splendid Florida waters.

小题1:You should especially protect yourself from sun burnt while visiting______.

A.Jet Ski Tours of Miami

B.Coconut’s Watersports

C.15th Street Boat Company

D.American Watersports小题2:Which of the following can help you enjoy sailing a boat?

A.Go to the Sea Gardens Beach Resort.

B.Visit 15th Street Boat Company.

C.Choose Jet Ski Tours of Miami.

D.Visit Coconut’s Watersports.小题3:What’s a must to ride alone in the Jet Ski activities?

A.One must be at least 14 years old.

B.One must wear bathing suits and shorts.

C.One must apply plenty of sun block.

D.One must be accompanied by parents.小题4:What will you do to satisfy your son’s curiosity about sea animals?

A.You would like to rent a boat to ride with him.

B.You need a boat with comfortable seats with a stereo.

C.You’d like to choose American Watersports.

D.You prefer the tour to Bayside and Hard Rock.

单项选择题 共用题干题