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【单选题】
上下、上中下、左右、、上下左右、内外、参差结构是______的结构类型。A.
拉丁字母
B.
汉字
C.
腓基文
D.
阿拉伯数字
拍照语音搜题，微信中搜索"皮皮学"使用
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【简答题】Business bank accounts need to be personal ones. She her work to make herself some coffee and then resumed a few minutes later. People need less sleep as they get older. These are the key factors for ...
【简答题】阅读下面短文, 根据短文内容判断正误,正确填A,错误的填B。 Mr. Smith usually got up late in the morning, so Mrs. Smith always called him up in order to make him not to be late for work. One day, they had a loud and long quarreli...
【简答题】二、阅读理解 (共 5 小题,每小题 2 分,满分 10 分) 阅读下面短文, 根据短文内容判断正误,正确填 A,错误的填B。 Mr. Smith usually got up late in the morning, so Mrs. Smith always called him up in order to make him not to be late for work. One day, ...
【单选题】阅读下面短文,根据短文内容判断正误,正确填A,错误的填B。 Mr. Smith usually got up late in the morning, so Mrs. Smith always called him up in order to make him not to be late for work. One day, they had a loud and long quarrelin...
A.
True
B.
False
【简答题】Mr. Smith usually got up late in the morning, so Mrs. Smith always called him up in order to make him not to be late for work. One day, they had a loud and long quarreling, so they were not speaking t...
【多选题】关于LPWAN技术,以下表述正确的是
A.
现有的LPWAN技术均属于移动通信范畴。
B.
NB-IoT是基于蜂窝的LPWAN技术,可直接部署于GSM网络、UMTS网络或LTE网络。
C.
NB-IoT具有覆盖广、连接多、速率高、成本低、功耗低、架构优等特点。
D.
Lora、SIGFOX、NB-IoT、Wi-Fi均属于LPWAN技术。
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