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【单选题】
集线器工作在OSI模型的物理层普通交换机工作在OSI模型的（）层。A.
物理
B.
数据链路
C.
网络
D.
传输
拍照语音搜题，微信中搜索"皮皮学"使用
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皮皮学刷刷变学霸
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【单选题】生态元素是村境生态的重要组成部分,以下哪个元素的缺失会导致孕妇的早产、儿童智力落后、痉挛性瘫痪、斜视、粘液性水肿、神经运动障碍、胎儿甲状腺功能减退?( )
A.
缺硒
B.
缺碘
C.
缺镁
D.
缺锌
【简答题】adj. Causing people to lose sth or to suffer____。
【单选题】生态元素是村境生态的重要组成部分，以下哪个元素的缺失会导致孕妇的早产、儿童智力落后、痉挛性瘫痪、斜视、粘液性水肿、神经运动障碍、胎儿甲状腺功能减退?(）
A.
缺锌
B.
缺硒
C.
缺镁
D.
缺碘
【多选题】John and Ellen own the John and Ellen Laundry, a partnership. Each takes $1,000 cash from the partership entity and deposits it into a personal bank account. An accounting report of the financial posi...
A.
the entity has $2,000 less cash
B.
the change in the entity's equity is zero
C.
the entity has $2,000 less equity
D.
John and Ellen each have $1,000 more cash
【单选题】Which of the following is true according to the dialogue?
A.
Ellen didn't like the temples in Thailand.
B.
Ellen didn't go to other places except Bangkok.
C.
Ellen visited Phuket, the largest island of Thailand.
D.
Ellen plans to go back to Thailand next year
【简答题】u VOCABULARY 1. rogue adj. behaving in a different way from other similar people or things, often causing damage 行为失常的;暴戾的。例如: a rogue gene 变异基因 2. respiratory adj. connected with breathing 呼吸的。例如: re...
【简答题】Lucey-Driscoll综合征(名词解释)
【简答题】__________adj. causing people to lose sth or to suffer
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