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【简答题】
Jess really felt very happy. When he arrived at his seat in the classroom that morning, he found an invitation on his desk. It was from several of his classmates asking him to join them on a camping trip. This was the first time he was asked to join in an out­of­school activity. Why were they asking him now? Nobody seemed to like him. In fact, he had been so lonely that he drowned(麻痹) his feeling with food. As a result, he had put on a lot of weight, and this gave the kids something more to make fun of him. Cindy, who was standing near Jess when he read the invitation, went out quickly to tell the others that the trick(恶作剧) had worked. Everyone was pleased that Jess thought that was true. But there was no camping trip. The whole thing was made up. At first, Cindy thought it was fun. But later, when Jess told her that he was going to buy a sleeping bag with his savings(积蓄), Cindy had a second idea. She knew that Jess's family had little money, and they hated to see him spend his savings on something he would never use. Cindy also hated to tell Jess the truth. Her close friends would be angry with her. What could she do now?
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【多选题】操纵子学说是原核生物基因调控的重要方式。主要为负调控方式的是
A.
乳糖操纵子
B.
色氨酸操纵子
C.
阿拉伯糖操纵子
D.
葡萄糖操纵子
【简答题】The thief closed his eyes ____ ____ he _____ ____ dying . A. as if ; was B. though ; would be C. e ven ; had been D.as if ; were
【单选题】以下各账户中属于费用账户的是( )。
A.
短期借款
B.
财务费用
C.
预付账款
【单选题】以下各账户中属于费用账户的是( )。
A.
预付账款
B.
应付利息
C.
短期借款
D.
财务费用
【简答题】作业要求: 1 .分小组完成,每小组 4-5 人。 2 .每小组按 K 线形态选出至少三支股票,在每支股票中至少找一个买点 和 卖点,并作简要分析。注意,一般来说,所谓买点就是按 K 线形态找到底部反转或空翻多的信号;所谓卖点就是按 K 线找到顶部反转或多翻空的信号。 3 .墓碑线、上吊线、锤子线和 T 型线算一类形态,看涨看跌吞没、乌云盖顶和刺透算第二类形态,看涨看跌孕育算第三类形态,三只乌鸦和...
【单选题】以下各账户中属于费用账户的是( )。
A.
用现金购买固定资产
B.
用现金支付办公费
C.
赊购材料
D.
以银行存款支付欠供应商货款
【简答题】听下面一段材料,回答第1至3题。 1. What happened to the shop in one month? A. The shop was on fire twice. B. The shop closed twice. C. The shop was broken in twice at night. 2. Why did Mr Blue buy a camera? A. He wa...
【单选题】上升三法和下降三法分别是( )和( )形态的K线组合。
A.
反转,持续
B.
反转,反转
C.
持续,持续
D.
持续,反转
【单选题】红霉素作为一种抗菌药,通过结合细菌核糖体23 S rRNA而抑制细菌蛋白合成。而红霉素抗性的细菌携带的质粒可编码红霉素甲基化酶,将23SRNA甲基化,阻止红霉素的结合,从而产生红霉素抗性。红霉素甲基化酶的mRNA结构类似于色氨酸操纵子。下列描述错误的是
A.
无红霉素时,前导肽正常翻译,3/4片段形成发夹结构
B.
无红霉素时,核糖体无法结合SD序列,无法翻译出红霉素甲基化酶
C.
弘霉素结合核糖体使之滞留覆盖片段,形成2/3间发夹,34不能形成发夹
D.
有红霉素时,核糖体结合SD序列,翻译出红霉素甲基化酶
E.
该表达调控方式属于转录水平的调节
【判断题】整体楼地面施工中水泥砂浆地面所用的砂子是细砂。
A.
正确
B.
错误
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