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【判断题】
B2B电子商务是指企业之间通过互联网或私有网络等现代信息技术手段,以电子化方式开展的商务活动,包括:供求信息发布、商务洽谈、订货、货款支付等过程。A.
正确
B.
错误
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【单选题】左肺根的毗邻
A.
前方有左膈神经和左喉返神经
B.
后方有左迷走神经
C.
前下方为心包形成的隆凸、胸主动脉、胸导管等
D.
上方有左右头臂静脉及其属支
E.
以上均不对
【单选题】关于气管胸部的毗邻，下列哪项是错误的?( )
A.
前方为胸骨柄和胸腺
B.
头臂干自前向右跨越气管
C.
后方有食管
D.
右前方有右头臂静脉和上腔静脉
E.
右侧为主动脉弓
【简答题】Robby was 11 when his mother dropped him off for his first piano lesson. I prefer students begin at an earlier age. Robby insisted that it had always been his mother’s dream to hear him play the piano...
【简答题】我做作业时妈妈在做饭。 My mother while I my homework.
【简答题】Genzeb Tibeb is very bright. At only 11 years old, her future is looking promising. She is ranked 2nd Out of 56 students at her govemment school in Addis Ababa, Ethiopia where she has been seleeted f...
【多选题】关于主动脉弓的毗邻,说法正确的是( )。
A.
左前方有动脉导管三角
B.
右后方有胸导管和右喉返神经
C.
上方有左锁骨下静脉
D.
下方有动脉韧带、肺动脉和左主支气管
E.
右侧有上腔静脉
【单选题】关于心包毗邻的描述,错误的是
A.
前壁隔胸膜、肺与胸骨体下半及左侧2~6肋软骨相邻
B.
临床上常在左侧剑肋角处行心包穿刺
C.
上方有上腔静脉、升主动脉和肺动脉
D.
两侧直接邻肺
E.
下壁与膈中心腱愈着
【多选题】气管颈部前方的毗邻关系
A.
由浅入深依次为皮肤、浅筋膜、封套筋膜、胸骨上间隙及其内的静脉弓、舌骨下肌群、气管前筋膜和气管前间隙
B.
平第2-4气管软骨前方有甲状腺峡
C.
峡的下方气管前间隙内有甲状腺下静脉、甲状腺奇静脉丛及可能存在的甲状腺最下动脉
D.
幼儿的胸腺、左头臂静脉和主动脉弓等，常会高出胸骨颈静脉切迹达气管颈部前面
E.
对幼儿进行气管切开术时，应注意不宜低于第5气管软骨
【简答题】阅读理解 Robby was 11 when his mother dropped him off for his first piano lesson. I prefer students to begin at an earlier age. Robby said that it had always been his mother's dream to hear him play the p...
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