【題組】73. How many species are most important to our present food supply?(A) Twenty. (B) Eighty. (C) O
5.霍夫曼編碼(HuffmanCoding)，又譯為哈夫曼編碼、赫夫曼編碼，是一種用於無損資料壓縮演算法。(6分)針對相異字元,統計其出現的次數:【題組】(一)在霍夫曼樹(HuffmanTree)中，
【題組】74. Wilson suggests that one way to keep biodiversity is to _______.(A) learn how to farm scient
【題組】57. We can infer from the text that ______.(A) the couple worked 60 hours a week. (B) people wer
【題組】75. We can infer that the text is _______(A) a description of natural resources(B) a research re
【題組】(二)針對每個由根節點至葉節點的路徑，將其所經過邊的標示連結起來，並指派給對應葉節點所代表的字元，此即霍夫曼編碼(HuffmanCode):針對相異字元, 統計其出現的次數如下，輸出A, B,
【題組】58. How did people get to know the couple’s problem?(A) From radio broadcasts. (B) From a newspa
【題組】57．How did Ma Shwe manage to save her calf from the fast-flowing water?(A)．By putting it on a sa
【題組】59. What do the couple learn from their experience?(A) Strangers are usually of little help. (B)
Many animals recognize their food because they see it. So do humans. When you see an apple or a piec
【題組】61. Which of the following eats only one type of food?(A) The white butterfly. (B) The small bir
【題組】58．How did the calf feel about the mother elephant’s roaring?(A)．It was a great comfort (B)．It w
【題組】59．What can be the best title for the text?(A)．A Mother’s Love (B)．A Brave Act(C)．A Deadly River
Computer programmer David Jones earns $35.000 a year designing new computer games. yet he cannot fin
【題組】63. We can learn from the last paragraph that __________.(A) food is chosen for a good reason(B)