第4题: [单项选择]下列关于真核生物复制子的说法哪种是正确的 A. 所有复制子在S期同时被激活,开始复制,以保证在进入下一个细胞周期前完成DNA复制 B. 长度比原核生物的复制子短,因为真核生物基因组中有较多的复制终止序列 C. 长度比原核生物的复制子长,因为真核生物基因组比原核生物大 D. 他们通常是双向的 参考答案:D
第11题: [单项选择]{{B}}Questions 11 to 18 are based on the conversation you have just heard.{{/B}} A. They should go up to Bob’s study. B. Bob should decide about English for himself. C. Bob is leaving for Spain. D. They have to make an urgent decision. 参考答案:B 答案解析:[听力原文]
M: Do you think we could urge Tom to study English
W: Well, we have to leave that decision