起始密码子是指() A.DNA上决定决定翻译的起始的碱基序列 B.核糖体上决定氨

题型:单项选择题

问题:

起始密码子是指()

A.DNA上决定决定翻译的起始的碱基序列

B.核糖体上决定氨基酸的碱基序列

C.信使RNA上决定翻译的起始的碱基序列

D.DNA上决定决定转录的起始的碱基序列

考点:高中生物基因的概念与表达基因的概念与表达题库
题型:单项选择题

以下哪种疾病不属于外科急腹症()。

A.急性阑尾炎

B.急性胃肠炎

C.急性胰腺炎

D.急性胆囊炎

E.急性肠梗阻

题型:单项选择题

第二节完形填空(共10小题;每小题1分,满分10分) 

阅读下面短文,掌握其大意,然后从第31至第40小题所给的A、B、C、D四个选项中,选出最佳选项,并在答题卡上将该项涂黑。

One day an old card caught my eye: Queen City Casket Company. Immediately my mind traveled back many years.

I was nine years old, walking down the cold, wet streets of Springfield, with a bag of   31       on my shoulder. Finally, I came to that Company, whose owner, Mr. Rader, had taken me there to   32   his workers whether they wanted any magazines.

Shaking off the rain, I entered Mr. Rader’s office. After a quick glance he led me over to the fire-place. Noticing the   33   in the top of my shoe, he said, “Come with me!” Then, he took me to a shoe store. Inside, a salesman   34   me with the finest pair of Oxfords I had ever seen. I felt about 10 feet tall when I got up in   35  . “We’d like a pair of   36   socks, too.” Mr. Rader said.

Back in his office, Mr. Rader took out a   37  , wrote something on it, and handed it to me. With tearful eyes, I read, “Do to others as you would have them do to you.” He said affectionately(深情地), “Jimmy, I want you to   38   I love you.”

I said good-bye, and for the first time I sensed that somehow things would be   39  . With people like Mr. Rader in the world, there was hope, kindness and love, and that would always make a  40  .

31. A. newspapers                B. magazines                C. books                       D. tools

32. A. tell                              B. say                          C. answer                    D. ask

33. A. dirt                           B. water                       C. hole                    D. mud

34. A. bought                         B. fitted                       C. sold                        D. comforted

35. A. it                         B. them                     C. one                         D. this

36. A. new                          B. old                          C. big                      D. small

37. A. pen                           B. paper                             C. card                        D. notebook

38. A. admit                    B. know                             C. consider                  D. express

39. A. mistaken                   B. right                       C. all right                   D. possible

40. A. rule                          B. cake                        C. thing                        D. difference

题型:单项选择题

—Could you tell me_____?

—No problem.

A.when shall we go to meet our favourite TV star

B.how should we deal with the problem

C.what “Take care” means

D.what time it was

题型:单项选择题

毛 * * 在《井冈山的斗争》中写道:“土地分配的标准:以乡为分配土地的单位。所有乡村中男女老幼,一律平分。现依中央办法,改以劳动力为标准,能劳动的比不能劳动的多分一倍。”这一变化的主要目的在于()。

A.完成反封建的民主革命

B.实现“平均地权”的理想

C.发展生产以巩固根据地

D.争取农民参加革命战争

题型:单项选择题

非政府组织管理层的主要职能不包括()

A.计划

B.组织

C.服务

D.引导

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