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

Choose the correct meaning of each word.joint task A: common task B: unique task C: easy task D: united task

见PDF Task 1, Task 2, Task 3

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")

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")

'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']

Only in this way ______ on time A: we can finish the task B: finish we the task C: we finish the task D: can we finish the task

【单选题】下列是日期型常量的一项是 A. "02/03/2020" B. 02/03/2020 C. {02/03/2020} D. #02/03/2020#

成功连接MQTT后，服务回复： A: 20 02 00 00； B: 20 02 00 01； C: 20 02 00 04； D: 20 02 00 06；

STAR原则具体包括什么？? Situation、Task、Action、Requirements|Situation、Task、Action、Result|Situation、Task、Ability、Result|Situation、Task、Ability、Requirements