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問題的種類

英文 國中

請問第八題為什麼不能選A?

6. 8. (A) surprising; stood surprised; standing (D) surprising; Taylor Swift is a world-famous singer. She was born in Pennsylvania in 1989. At the age of fourteen, she that she's one of the best singers ever. People all over brought out her first song. From then on, she the world enjoy listening to her music. (A) showed (B) would show 7. Max is going hiking tomorrow, but he doesn't know (A) that Bif (C) how Kiki: I heard that Roy's birthday was coming. I'm thinking about throwing a party for him. What do you think? Lala: Sounds great. We can buy the latest iPhone for him. He has longed for one for a long time. 10. The engineer Kiki: That's an excellent idea. What about the food for the party? Which do you think is better, steak or pork chop? of them. He is only into spaghetti. Lala: I don't think he'll like (A) both (C) some (D) all Animals are welcome to visit this restaurant. Popular pets like dogs, cats, and rabbits____ keepers. (A) to be seen also seriously hurt. (A) made to drive has shown (D) will show the weather will be fine. (D) where (B) either 英文會考英文 (B) made driven (C) was made drive 1. My son has grown bigger and bigger now. He has become too (A) long (B) thin (C) thick (B) often see (C) are often seen (D) and are often seen his co-worker to the meeting after an accident happened to them, even though he was accident here with their D was made to drive for me to carry on my back. heavy

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生物 高中

可以幫我看看下方的圖我哪一個步驟寫錯嗎🥹 我依據題意得到的是 G1-S:細胞生長、S-G2:細胞累積營養、G2-有絲分裂:DNA複製

完整、 画家 素養題 細胞週期(cell cycle)是指一個能持續分裂的細胞從前次分裂結束後生長,再到下一次分裂 結束的循環過程。可分為間期和細胞分裂期兩個主要階段。 真核生物的間期,細胞生長、積累細胞分裂所需的營養,並複製其 DNA 和一些胞器。細胞 分裂期則分為有絲分裂和細胞質分裂兩個階段,間期複製的染色體、胞器和細胞質在細胞分裂期 被分成兩個新的子細胞。 A 關鍵題型 9 為確保細胞成分的正確複製和分裂,在細胞週期的每個關鍵步驟之後都設有「細胞週期檢 查點」 以確定該細胞是否可以進入細胞週期的下一階段。正常的細胞週期有三個檢查點:在 DNA 複製前有一個檢查點,這個檢查點檢查細胞是否生長足夠適合進行染色體複製或者是否離 開細胞週期進入休止期(G期);在間期和細胞分裂期間有一個檢查點,檢查所有染色體是否 已被複製;在細胞分裂中有一個檢查點,檢查是否所有染色體已經跟紡錘體接上,再繼續細胞分 裂。 真核細胞利用週期蛋白(cyclin)與週期蛋白依賴型激酶(cyclin-dependent kinase,縮寫 CDK)來調控細胞週期。科學家以週期蛋白的表現量會隨著細胞週期的進行而有所變化,而確 認週期蛋白原來是扮演細胞週期調控的角色。隨著細胞週期的進行,週期蛋白(cyclin D)在 間期就開始大量表現(如下圖所示),隨後由週期蛋白(cyclin E)取代濃度最高的角色,最 後則是A與B接續出現。週期蛋白的濃度直接影響週期蛋白依賴型激酶的作用,引發細胞後續 一系列的反應。(改自維基百科) 31 濃度 Cyclin D Cyclin E G期 Cyclin A S期 G期 生長 果營養 細胞週期的調控對真核細胞來說相當的重要,透過不同週期蛋白的表現可以調控細胞週其 的進行,由以上的資料推測哪一種週期蛋白的出現,最可能促使 DNA 開始複製? E (A週期蛋白A()週期蛋白B (C週期蛋白C(D)週期蛋白D (E)週期蛋白E Cyclin B 複製 *有絲分裂期

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