题目内容：

Best Travel Guides by Continent

We’ve broken down (分类)the best travel guides, by continent, to help you find student discounts and travel like a local on your next adventure.

Europe—let’s Go Europe 2019: The Students Travel Guide

Let’s Go was founded about 56 years ago when a Harvard student had an idea to provide accessible, budget travel tips for young people. Students love its amusing pages. let’s Go Europe 2018 has everything you need for your trip—from the best beer in Brussels to how to avoid the lines at the Louvre.

Africa—The Rough Guide to Cape Town, the Winelands, and the Garden Route

With its colorful photos and detailed tips on how to make the most of South Africa, The Rough Guide is the book to get when visiting Africa. You may not have access to Google Maps when you’re out exploring but that’s OK. The Rough Guide also comes with easy use to maps. It can be purchased as an eBook, or as a paperback (平装本).

Asia—Lonely Planet: South –East Asia on a Shoestring

This guide is perfect for those backpacking through the hidden treasures of South-East Asia. With detailed recommendations from experts in the area, this guide helps first-times as well as experienced backpackers. This book can be purchased as a paperback travel guide. A download for an eBook or separate chapters can be purchased to serve as a guide to specific cities.

North America—Lonely Planet USA Travel Guide

With detailed reviews of the best places to eat, sleep, and explore, Lonely Planet is linked with budget-friendly attractions and that is why it makes our best travel guides list. This travel guide is available in paperback.

1.What is the common character of the four travel guides?

A. They are all expensive.

B. They are intended for students.

C. They all have a very long history.

D. They are all available online.

2.Which travel guide can be downloaded partly online?

A. let’s Go Europe 2019: The Students Travel Guide.

B. The Rough Guide to Cape Town, the Winelands, and the Garden Route.

C. Lonely Planet USA Travel Guide.

D. Lonely Planet: South –East Asia on a Shoestring.

3.Why does the author recommend Lonely Planet USA Travel Guide?

A. It contains recommendations from experts.

B. It introduces the attractions in an amusing style.

C. It has colorful photos and vivid travel videos.

D. It provides cheap but attractive travel destinations.