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Facebook is helping to save the environment. So is your iPhonE. Surprised? I was too when I fi...

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SELECT XM,SA,SD FROM STUD   WHERE BETWEEN 20<SA<23;  SELECT XM,SA,SD FROM STUD   WHERE SA BETWEEN 23 AND 20  SELECT XM,SA,SDFROM STUD   WHERE SA NOT BETWEEN 20 AND 23  SELECT XM,SA,SDFROM STUD   WHERE SA BETWEEN 20 AND 23  
SELECT XM,SA,SD FROM STUD WHERE BETWEEN 20SELECT XM,SA,SFROM STUD WHERE SA BETWEEN 23 AND 20  SELECT XM,SA,SD FROM STUD WHERE SA NOT BETWEEN 20 AND 23  SELECT XM,SA,SD FROM STUD WHERE SA BETWEEN 20 AND 23  
SELECT XM,SA,SD FROM STUD WHERE BETWEEN 20<SA<23  SELECT XM,SA,SD FROM STUD WHERE SA BETWEEN 23 AND 20  SELECT XM,SA,SD FROM STUD WHERE SA NOT BETWEEN 20 AND 23  SELECT XM,SA,SDFROM STUD WHERE SA BETWEEN 20 AND 23  
SELECTXM, SA, SD FROM STUD WHERE BETWEEN 20<SA<23  SELECTXM, SA, SD FROM STUD WHERE SA BETWEEN 23 AND 20  SELECTXM, SA, SD FROM STUD WHERE SA NOTBETWEEN20 AND 23  SELECTXM, SA, SD FROM STUD WHERE SA BETWEEN 20 AND 23  
SELECT XM,SAFROM STUD FOR SA<20  SELECT XM,SA FROM STUD WHERE NOT SA>=20  SELECT XM,SA ON STUD FOR SA<20  SELECT XM,SA ON STUD WHERE SA<20  
SELECT XM,SA FROM STUD FOR SA<20  SELECT XM,SA FROM STUD WHERE NOT SA>=20  SELECT XM,SA ON STUD FOR SA<20  SELECT XM,SA ON STUD WHERE SA<20  
SELECT XM,SA,SD FROM STUD   WHERE BETWEEN 20<SA<23;  SELECTXM,SA,SD FROM STUD   WHERE SA BETWEEN23 AND 20  SELECTXM,SA,SDFROM STUD   WHERE SA NOT BETWEEN 20 AND23  SELECT XM,SA,SDFROM STUD   WHERE SA BETWEEN 20 AND23  
Sa5-Sa8  Sa4-Sa8  Sa1-Sa5  Sa1-Sa4  
SELECT XM, SA, SD FROM STUD WHERE BETWEEN 20<SA<23;  SELECT XM, SA, SD FROM STUD WHERE SA BETWEEN 23 AND 20;  SELECT XM, SA, SD FROM STUD WHERE SA NOT BETWEEN 20 AND 23;  SELECT XM, SA, SD FROM STUD WHERE SA BETWEEN 20 AND 23;  
。实现该功能的正确SQL语句是______。A) SELECT XM,SA FROM STUD FOR SA<20  SELECT XM,SA FROM STUD WHERE NOT SA>=20  SELECT XM,SA ON STUD FOR SA<20  SELECT XM,SA ON STUD WHERE SA<20  

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