Group 3

Ages of these patients ( ) from 12 to 65 years for group A and from 3 to 54 years for group B.

下列的java语言标识符合法的是( )。 A: $flag B: group-3 C: oolean D: 6book

Group 3: Verbs.Match the following words with corresponding meanings.

What is the function of RNA primer during DNA replication? A: to provide a 3’ OH group for DNA polymerase B: to provide a 5’ OH group for DNA polymerase C: to provide a 3’ phosphate group for DNA polymerase D: to provide a 5’ phosphate group for DNA polymerase E: to provide a hydrogen bond for double strand of DNA .

下列查询语句中，错误的是（）。 A: ASELECT Sno， COUNT（*） FROM SC GROUP BY Sno B: BSELECT Sno FROM SC GROUP BY Sno WHERE COUNT（*）> 3 C: CSELECT Sno FROM SC GROUP BY Sno HAVING COUNT（*）> 3 D: DSELECT Sno FROM SC GROUP BY Sno

下列查询语句中，错误的是（）。 A: SELECT Sno， COUNT（*） FROM SC GROUP BY Sno B: SELECT Sno FROM SC GROUP BY Sno WHERE COUNT（*）> 3 C: SELECT Sno FROM SC GROUP BY Sno HAVING COUNT（*）> 3 D: SELECT Sno FROM SC GROUP BY Sno

Why did the author ask the group questions in Paragraph 3 ?

下列SQL语句中，正确的是（ ）。 A: SELECT S B: , SNAME FROM SC GROUP BY S C: SELECT S D: FROM SC GROUP BY S E: HAVING COUNT(*)>3 F: SELECT S G: ,Cname FROM SC GROUP BY S H: WHERE COUNT(*)>3 I: SELECT S J: FROM SC WHERE COUNT(*)>3 GROUP BY S

下列SQL语句中，正确的是（ ）。 A: SELECT S B: , SNAME FROM SC GROUP BY S C: D: SELECT S E: FROM SC GROUP BY S F: HAVING COUNT(*)>3 G: SELECT S H: ,Cname FROM SC GROUP BY S I: WHERE COUNT(*)>3 J: SELECT S K: FROM SC WHERE COUNT(*)>3 GROUP BY S L: