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Translate the following passage into Chinese.

Ever since humans have inhabited the earth, they have made use of various forms of communication. Generally, this expression of thoughts and feelings has been in the form of oral speech. When there is a language barrier, communication is accomplished through sign language in

which motions stand for letters, words, and ideas. Tourists, the deaf, and the mute have had to resort to this form of expression. Many of these symbols of whole words are very picturesque and exact and can be used internationally ； spelling, however cannot.

Body language transmits ideas or thoughts by certain actions, either intentionally or unintentionally. A wink can be a way of flirting or indicating that the party is only joking. A nod signifies approval, while shaking the head indicates a negative reaction. Other forms of nonlinguistic language can be found in Braille (a writing system for the blind, composed of raised dots to be read with the fingertips), signal flags, Morse code, and smoke signals. Road maps and picture signs also guide, warn and instruct people.

While verbalization is the most common form of language, other systems and techniques also express human thoughts and feelings.

Part B (10%)

Translate the following sentences into English.

71. 古人認(rèn)為心臟是思維的器官。這是因?yàn)楫?dāng)人們在興奮(無論是高興還是憤怒)的時候，心臟 跳動的變化人們能夠直接感覺到。

72. 迄今為止，科學(xué)已經(jīng)發(fā)展了好幾百年了，但我們還遠(yuǎn)未獲得對世界的完全認(rèn)識。也許我們并不能把握世界的終極真理，但會一步步接近它。

73. 據(jù)現(xiàn)場消息，這次交通事故中共有3人死亡、15人受傷；目前傷者已用直升機(jī)送到急救中心。事敵原因正在調(diào)查之中。

74. 魯迅曾說：有缺陷的戰(zhàn)士仍然是戰(zhàn)士，而完美的蒼蠅不過是蒼蟬。

75. 早期的移動電話只能用于通話，不僅體積大、重量大，而且經(jīng)常接不通。如今，移動電話不僅可以打電話，還可以上網(wǎng)、辦公、看電影、玩游戲，已不是一部單一的電話了。

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