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  1. ... tube is normally closed but opens from time to time when we swallow, yawn or chew. In most people, just normal swallowing and ...

  2. We can convert a MIDI file to a digital wave audio file. To do that you need..., then after the recording, you can save it as a wave file. But we can't convert a digital wave audio to a MIDI file. Because wave...

  3. g(x) = 2(x-m)^2 + 3 , g(0) = 11 11= 2(0-m)^2 + 3 11-3 = 2(-m)^2 8 = 2m^2 8/2 = m^2 4 = m^2 or m^2 = 4 m = -2 or +2 (this is answer)

  4. 1. We can improve the air quality in Hong Kong. 2.support: no vessel shall emit excessive or nuisance smoke. 3.Don't throw away the rubbishes 4. We can switch off our engines when we take a break. 5.Save energy...

  5. ...water, cant drink. Also, according to USA doctor, professional, if we keep using water in this way. 2050 will be no more water for human being...

  6. 聖母書院( Our Lady's College) 是一所由香港天主教母佑...刊物 編委會成立至今已有22年,每年出版3期名為「雅匯 Our Ladian」之刊物,內容包括老師介紹、世界各地資訊...

  7. 1. Why do we need to go school? 人是萬物之靈,但是人也是萬物中生命很脆弱的生物...人際溝通相處、b.合作精神、c.群體的責任和義務.... 2.Why do we need to do homework? 我們學習知識,除了接收知識的信息之外,我們也...

  8. 一黎係加深記憶, 就咁上堂听一次邊度記得學左d咩丫~ 二黎係俾d老師睇下你程度去到邊, 明幾多,之後佢地就可以根據你既程度去調整佢要點教喇~ 三黎要同家長交代, d家長見到自己d仔女放學返黎冇野做,會覺得學校d先生冇做野~

  9. 鱷是靜候獵手,它們等到魚或者陸上的動物走到附近然後突然 襲擊。 作為冷血動物它們惰性比較高,因此可以很長時間不吃東西依然活着。它們很少主動去狩獵。 雖然鱷看上去非常慢,但是在水中它們是非常有力的獵手,多種鱷被觀察到襲擊和殺死鯊魚。 要想鱷魚不向你攻擊 你...