• 2022-06-17 问题

    S模式系统中雷达目标数据信息、雷达服务信息分别用哪种数据格式封装() A: ASTERIX CAT.48 ASTERIX CAT.34 B: ASTERIX CAT.01 ASTERIX CAT.02 C: ASTERIX CAT.01 ASTERIX CAT.34 D: ASTERIX CAT.48 ASTERIX CAT.02

    S模式系统中雷达目标数据信息、雷达服务信息分别用哪种数据格式封装() A: ASTERIX CAT.48 ASTERIX CAT.34 B: ASTERIX CAT.01 ASTERIX CAT.02 C: ASTERIX CAT.01 ASTERIX CAT.34 D: ASTERIX CAT.48 ASTERIX CAT.02

  • 2022-06-05 问题

    在基于RS-485的MODBUS通信中,网关节点发送的报文是:02 02 00 00 00 01 B9 F9,则响应报文正确的是( )。 A: 02 02 01 01 60 0C B: 02 02 02 01 60 0C C: 02 02 01 00 01 60 0C D: 02 02 02 00 60 0C

    在基于RS-485的MODBUS通信中,网关节点发送的报文是:02 02 00 00 00 01 B9 F9,则响应报文正确的是( )。 A: 02 02 01 01 60 0C B: 02 02 02 01 60 0C C: 02 02 01 00 01 60 0C D: 02 02 02 00 60 0C

  • 2022-06-14 问题

    若Animal是Cat,Dog的父类,则下列选项中,正确的是() A: Animal animal = new Cat(); B: Animal a = new Cat(); Cat cat = (Cat) a; C: Animal animal = new Dog(); D: Cat cat = (Cat)new Dog();

    若Animal是Cat,Dog的父类,则下列选项中,正确的是() A: Animal animal = new Cat(); B: Animal a = new Cat(); Cat cat = (Cat) a; C: Animal animal = new Dog(); D: Cat cat = (Cat)new Dog();

  • 2022-05-28 问题

    查询图书编号是"01"或"02"的记录,可以在条件中输入( )。 A: "01" and "02" B: not in ("01" , "02") C: in ("01" , "02") D: not ("01" and "02")

    查询图书编号是"01"或"02"的记录,可以在条件中输入( )。 A: "01" and "02" B: not in ("01" , "02") C: in ("01" , "02") D: not ("01" and "02")

  • 2021-04-14 问题

    筛选图书编号是“01”或“02”的记录,可以在准则中输入()A.()“01”()or()“02”()B.()not()in("01","02")()C.()in("01","02")()D.()not()("01","02")

    筛选图书编号是“01”或“02”的记录,可以在准则中输入()A.()“01”()or()“02”()B.()not()in("01","02")()C.()in("01","02")()D.()not()("01","02")

  • 2022-06-01 问题

    '2020/02/29'.split('/')的运行结果是: A: '2020' '02' '29' B: 2020 02 29 C: [2020,02,29] D: ['2020','02','29']

    '2020/02/29'.split('/')的运行结果是: A: '2020' '02' '29' B: 2020 02 29 C: [2020,02,29] D: ['2020','02','29']

  • 2022-05-29 问题

    5 Didn't you see that'blue cat/blue'cat? A: 'blue cat B: blue'cat

    5 Didn't you see that'blue cat/blue'cat? A: 'blue cat B: blue'cat

  • 2022-06-14 问题

    若Animal是Cat,Dog的父类,则下列选项中,正确的是() A: Animal animal = new Cat(); B: Cat cat = (Cat)new Animal(); C: Animal animal = new Dog(); D: Cat cat = (Cat)new Dog();

    若Animal是Cat,Dog的父类,则下列选项中,正确的是() A: Animal animal = new Cat(); B: Cat cat = (Cat)new Animal(); C: Animal animal = new Dog(); D: Cat cat = (Cat)new Dog();

  • 2022-06-09 问题

    cat testfile的输出与下面哪个命令相同?() A: cat>testfile B: cat<testfile C: cat>>testfile D: cat<<testfile

    cat testfile的输出与下面哪个命令相同?() A: cat>testfile B: cat<testfile C: cat>>testfile D: cat<<testfile

  • 2022-06-06 问题

    Under the tree (). A: did a cat lay B: did lay a cat C: a cat lay D: lay a cat

    Under the tree (). A: did a cat lay B: did lay a cat C: a cat lay D: lay a cat

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