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Reading comprehension -TOEFL- Lesson 78 (Đọc hiểu -TOEFL- Bài 78)

Đọc đoạn văn sau và trả lời các câu hỏi:

Among the problems that must be solved if even more powerful but smaller computers are to become viable propositions is the heat computer circuits generate. The present market leader, with 300, 000 chips in 100 cubic feet, requires a powerful refrigeration system; the 5 kind of super-computers now being discussed might cram half a million chips into a space the size of a shoe box, and would probably need a bath of liquid nitrogen to keep them from melting.

1. Today's leading large computer




2. It may be inferred from the passage that




3. According to the passage, the super-computers




4. The passage deals mainly with





Grammar Easy Grammar Medium Grammar - Difficult
1->25 26->49 50->75 76->99 100->125 126->164
Ôn Tập Ngữ Pháp Phần 1 Ôn Tập Ngữ Pháp Phần 2