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【单选题】
PLC的输出类型为AC/DC/RLY,这RLY代表什么意思?A.
输出交流
B.
输出直流
C.
输出继电器
D.
输入继电器
拍照语音搜题，微信中搜索"皮皮学"使用
参考答案：
参考解析：
知识点：
皮皮学刷刷变学霸
举一反三
【单选题】听力原文： South Korea's Foreign Minister Ban Ki Moon is in Washington for discussions with U.S. officials on North Korea's nuclear program. Both countries are represented in six-nation talks on the North ...
A.
upset
B.
pessimistic
C.
optimistic
D.
confused
【单选题】MCU的Telnet命令中，“bnrm”下interface表示？（）
A.
MCU与RM连接时的加密算法
B.
MCU与RM连接的端口
C.
MCU与RM通信的本地监听端口
D.
MCU与RM的连接密码
【单选题】It is hard to track the blue whale, the ocean's largest creature, Which has almost been killed off by commercial whaling and is now listed as an endangered species. Attaching radio devices to it is di...
A.
an effort to protect an endangered marine species
B.
the civilian use of a military detection system.
C.
The exposure of a U. S. Navy top-secret weapon
D.
A new way to look into the behavior. of blue whales
【单选题】TDCS中show interface命令查看路由器接口，如显示Ethernet 0 is up则表示（）。
A.
接口故障
B.
接口正常
C.
协议正常
D.
协议故障
【简答题】实训操作题:参照教材任务5-1记录一个子串在整串中出现的次数,完成程序录入和调试,将源代码和运行结果的截图粘贴到答案中。添加一行代码,在原显示内容后面显示“班级:19通信1班(华为) 学号:20190504xx 姓名:XXX”,如下图所示:
【简答题】听力原文： Presenter: Welcome to this introductory lecture on the geography of the United Kingdom. The UK, with a total population of over 60 million, consists of Great Britain and Northern Ireland. Great ...
【单选题】听力原文： South Korea's Foreign Minister Ban Ki Moon is in Washington for discussions with U.S. officials on North Korea's nuclear program. Both countries are represented in six-nation talks on the North ...
A.
upset
B.
pessimistic
C.
optimistic
D.
confused
【单选题】青铜器是由青铜合金(红铜与锡的合金)制成的器具,诞生于人类文明时期的青铜时代。春秋战国青铜鎏金活链壶是古代盛食物的器皿,展现着春秋战国时期先进的青铜制造技术,就春秋战国时期而言铸造壶器能够采用的先进技术是( )。
A.
金银错技术
B.
焊接技术
C.
抛光技术
D.
淬火技术
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