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Cloning (克隆): Future Perfect? 1．A clone is an exact copy of a plant or animal produced from any one ceil. Since Scottish scientists reported that they had managed to clone a sheep named Dolly in 1997,research into cloning has grown rapidly. In May 1998, scientists in Massachusettsmanaged to create two identical calves (牛犊) using cloning technology. A mouse has also been cloned successfully. But the debate over cloning humans really started when Chicago physicist Richard Seed made a surprising announcement: 'We will have managed to clone a human being within the next two years,' he told the world. 2．Seed's announcement provoked a lot of media attention, most of it negative. In Europe, nineteen nations have already signed an agreement banning human cloning and in the US the President announced: 'We will be introducing a law to ban all human cloning and many states in the US will have passed anti-cloning laws by the end of the year.' 3．Many researchers are not so negative about cloning. They are worried that laws banning human cloning will threaten important research. In March, The New England Journal of Medicine called any plan to ban research on cloning humans seriously mitaken. Many researchers also believe that in spite of attempts to ban it, human cloning will have become routine by 2010 because it is impossible to stop the progress of science. 4．Is there reason to fear that cloning will lead to a nightmare world? The public has been bombarded (轰炸) with newspaper articles, television shows and films, as well as cartoons. Such information is often misleading, and makes people wonder what on earth the scientists will be doing next. 5．Within the next five to ten years scientists will probably have found a way of cloning humans, it could be that pretty soon we will be able to choose the person that we want our child to look like, But how would it feel to be a clone among hundreds, the anti-cloners Askpretty coot, answer the pro-cloners (赞成克隆的我). 第 23 题 Paragraph 1 ___________
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【单选题】Five mil lion, five hundred and fifteen thousand, one hundred and fifty-one is __________. [ ]
A.
5,515,151
B.
5,151,151
C.
5,151,515
D.
5,551,155
【简答题】二2 ( )是一个由人、计算机等组成的能进行物流信息的收集、传递、储存、加工、维护和使用的系统。
【简答题】将Student表中的Sno属性定义为码 CREATE TABLE Student (Sno CHAR (9) _______________, Sname CHAR (20) NOT NULL, S CHAR (2), Sage SMALLINT, Sdept CHAR (2) );
【简答题】创业创新执行力课程告诉大学生在大学前几年我们要做的是()。
【单选题】You need to design a student registration database that contains several tables storing academic information. The STUDENTS table stores information about a student. The STUDENT_GRADES table stores inf...
A.
CREATE TABLE student_grades (student_id NUMBER(12),semester_end DATE, gpa NUMBER(4,3), CONSTRAINT student_id_fk REFERENCES (student_id) FOREIGN KEY student (student_id));
B.
CREATE TABLE student_grades(student_id NUMBER(12),semester_end DATE, gpa NUMBER(4,3), student_id_fk FOREIGN KEY (student_id) REFERENCES students (student_id));
C.
CREATE TABLE student_grades(student_id NUMBER(12),semester_end DATE, gpa NUMBER(4,3), CONSTRAINT FOREIGN KEY (student_id) REFERENCES student (student_id));
D.
CREATE TABLE student_grades(student_id NUMBER(12),semester_end DATE, gpa NUMBER(4,3), CONSTRAINT student_id_fk FOREIGN KEY (student_id) REFERENCES students (student_id));
【单选题】We read 10 ,206 like this________.
A.
one thousand, two hundred and six
B.
one thousands, two hundred and six
C.
ten thousand, two hundred and six
D.
ten thousand, two hundred six
【单选题】下面语句的作用是什么? [root@master code]# hive -f /code/create_Student_table.sql
A.
进入Hive, 并执行名为“ create_Student_table.sql ”文件中的HQL语句。执行完毕后退出Hive.
B.
执行名为“ create_Student_table.sql ”文件中的HQL语句。执行完毕后，处于Hive命令行交互模式，等待执行下一个命令。
C.
创建名为 create_Student_table.sql ”的文件。
D.
打开名为 create_Student_table.sql ”的文件。
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