• 2022-05-29 问题

    下面哪一个表达式能正确表示逻辑关系:"age≥18 或age≤60"? A: age>=18 || age B: age>=18 or age C: age>=18 | age D: age>=18 && age

    下面哪一个表达式能正确表示逻辑关系:"age≥18 或age≤60"? A: age>=18 || age B: age>=18 or age C: age>=18 | age D: age>=18 && age

  • 2022-05-29 问题

    表达式“AGE BETWEEN 18 AND 24”等价于 A: AGE>18 AND AGE<24 B: AGE>=18 AND AGE<24 C: AGE>18 AND AGE<=24 D: AGE>=18 AND AGE<=24

    表达式“AGE BETWEEN 18 AND 24”等价于 A: AGE>18 AND AGE<24 B: AGE>=18 AND AGE<24 C: AGE>18 AND AGE<=24 D: AGE>=18 AND AGE<=24

  • 2022-05-29 问题

    设有关系表S(NO,NAME,AGE),其中AGE为年龄字段,则表达式AGE NOT BETWEEN 18 AND 24等价于() A: AGE<=18 OR AGE>=24 B: AGE<=18 0R AGE>24 C: AGE<18 OR AGE>=24 D: AGE<18 0R AGE>24

    设有关系表S(NO,NAME,AGE),其中AGE为年龄字段,则表达式AGE NOT BETWEEN 18 AND 24等价于() A: AGE<=18 OR AGE>=24 B: AGE<=18 0R AGE>24 C: AGE<18 OR AGE>=24 D: AGE<18 0R AGE>24

  • 2022-05-29 问题

    与WHERE AGE BETWEEN 18 AND 23完全等价的是() A: WHERE AGE>18AND AGE<23 B: WHERE AGE>=18AND AGE<23 C: WHERE AGE>18AND AGE<=23 D: WHERE AGE>=18AND AGE<=23

    与WHERE AGE BETWEEN 18 AND 23完全等价的是() A: WHERE AGE>18AND AGE<23 B: WHERE AGE>=18AND AGE<23 C: WHERE AGE>18AND AGE<=23 D: WHERE AGE>=18AND AGE<=23

  • 2022-05-29 问题

    同WHERE Age BETWEEN 15 AND 20完全等价的是( )。 A: WHERE Age>;15 AND Age<;20 B: WHERE Age>;=15 AND Age<;20 C: WHERE Age>;15 AND Age<;=20 D: WHERE Age>;=15 AND Age<;=20

    同WHERE Age BETWEEN 15 AND 20完全等价的是( )。 A: WHERE Age>;15 AND Age<;20 B: WHERE Age>;=15 AND Age<;20 C: WHERE Age>;15 AND Age<;=20 D: WHERE Age>;=15 AND Age<;=20

  • 2022-05-29 问题

    设有关系表S(NO,NAME,AGE),其中AGE为年龄字段,则表达式 A: E  NOT  BETWEEN  18  AND  24  等价于: B: AGE<=18  OR  AGE>=24 C: AGE<=18  OR  AGE>24 D: AGE<18  OR  AGE>=24 E: AGE<18  OR  AGE>24

    设有关系表S(NO,NAME,AGE),其中AGE为年龄字段,则表达式 A: E  NOT  BETWEEN  18  AND  24  等价于: B: AGE<=18  OR  AGE>=24 C: AGE<=18  OR  AGE>24 D: AGE<18  OR  AGE>=24 E: AGE<18  OR  AGE>24

  • 2022-05-31 问题

    In which age did Trojan War take place? A: the Silver Age B: the Bronze Age C: Age of Heroes D: the Iron Age

    In which age did Trojan War take place? A: the Silver Age B: the Bronze Age C: Age of Heroes D: the Iron Age

  • 2022-06-04 问题

    In which age was human destroyed by Zeus with the flood ofDeluge? A: the Silver Age B: the Bronze Age C: Age of Heroes D: the Iron Age

    In which age was human destroyed by Zeus with the flood ofDeluge? A: the Silver Age B: the Bronze Age C: Age of Heroes D: the Iron Age

  • 2022-06-07 问题

    若是存在变量$ag=25,下而哪项中的代码不能输出"My age is 25"?( ) A: echo "My age is".Sage B: echo "My age is $age" C: echo 'My age is $age'; D: echo "My age is "."$age";

    若是存在变量$ag=25,下而哪项中的代码不能输出"My age is 25"?( ) A: echo "My age is".Sage B: echo "My age is $age" C: echo 'My age is $age'; D: echo "My age is "."$age";

  • 2021-04-14 问题

    the Victorian Age is the age of

    the Victorian Age is the age of

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