※ 引述《CGHS13 (.......)》之銘言： : Telomerase is an enzyme that is produced only in cells that are actively : dividing. For this reason it is generally absent from body tissues in adults : Bone marrow is an exception to this rule, however, since even in adults, bone : marrow cells continually divide to replace old blood cells. Cancers are : another exception, because their cells are rapaidly dividing. : A. Telomerase is the only enzyme that is present in cancerous cells but : absent from cells that are not activly dividing. : B. in children, the only body tissues from which telomerase is absent are : those ins which cells are not rapidly dividing. : C. The presence of telomerase in bon marrow is no indication of bone marrow : cancer. : D. Cancer of the bone marrow develops more rapidly than cancer growing in any : other kind of adult tissue. : E. The level of telomerase production is always higher in cancerous tissue : than in noncancerous tissue. : the information provided most strongly supports which if the following? : the answer is C : 不懂....? : why not E? : 題目說的不是 Telomerase 只存在於分裂活躍的細胞中 : 因為這個原因 所以很少產生在成人體內 : 但是bone marrow 與 Cancer 是例外 : 存在於bone marrow 是因為bone marrow cell 不斷分裂以替代老的紅血球細胞 : cancer 是因為他們的細胞快速在分裂 : 所以 C ?... C是無法挑錯的答案 因為他提到骨髓跟cancer都是例外，所以骨髓有T酵素並不代表得了骨髓癌 E不對 因為他只提到T酵素會在細胞分裂的情況出現 沒有提到分裂越快的地方就越多T酵素，所以有可能在骨髓的地方T酵素更多 -- 喜歡跟愛是不一樣的 喜歡是盪鞦韆 可以自得其樂 不需要別人的回應 愛是翹翹板 需要一個人坐在對面與你互動 貼近你內心的感覺... --

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