题目内容：
1. Computers can now understand __________ of carefully dictated, clear speech.A. 4-5% B. 30-40% C. 91-92% D. 95-96%
2 The simple device, possibly with a screen but no keyboard, can be put to use ___________.
A. within fifty years B. fifty years later
C. in the next five to ten years D. within the next five years
3. Which of the following may be the best title for the passage?
A. Internet and Human Voice B. Computers and Artificial Speech
C. Screen and Speech Recognition D. Computers and Human Behavior
4. Which of the following is NOT true?
A. Speech is the most convenient form of communication.
B. Speech-recognition techniques can be used between different languages.
C. The tone of the passage is blindly hopeful.
D. Lots of problems are waiting to be solved for the speech recognition.
5. The word “state-of –the-art” (Para. 4) most probably means _____________.
A. most advanced B. most popular C. most practical D. most complicated
参考答案：