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【单选题】
如图 2-8 所示电路,端口输入电阻为( )A.
2R
B.
R
C.
2/3R
D.
3/2R
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举一反三
【单选题】有关小肠的描述,正确的是
A.
为腹腔动脉和肠系膜上动脉所供 应
B.
它包括十二指肠，后者大部分在腹膜之后
C.
终止于回盲连接处
D.
开始于胃幽门
E.
其余选项说法全对
【简答题】Priscilla Ouchida’s “energy-efficient” house turned out to be a horrible dream. When she and her engineer husband married a few years ago, they built a $100,000, three-bedroom home in California. Tigh...
【简答题】Priscilla Ouchida's “energy-efficient” house turned out to be a horrible dream. When she and her engineer husband married a few years ago, they built a $100,000, three-bedroom home in California. Tigh...
【简答题】国际上通用的数控代码是（）和M。
【多选题】关于小肠系膜的描述,正确的说法是
A.
位于空、回肠与腹后壁之间,由双层腹膜形成
B.
系膜根附着于第2腰椎左侧至右侧骶髂关节的前方,长约15cm
C.
小肠系膜呈摺扇形,其连接小肠系膜缘部分与空回肠的长度相当
D.
两层腹膜间有肠系膜上血管、神经和淋巴管等走行
E.
空、回肠系膜内的血管弓形态完全相同
【单选题】关于系膜的描述,错误的是
A.
小肠系膜将空.回肠等固定于腹后壁
B.
阑尾血管走行于阑尾系膜的游离缘内
C.
横结肠系膜将腹膜腔划分为结肠上区和结肠下区
D.
由于乙状结肠系膜较短,故不容易发生肠扭转
E.
以上说法均正确
【简答题】Freight forwarders should be able to organize the carriage of goods by road and rail efficiently．（ ）
【简答题】The minimum amount insured should be the CIF value of the goods plus（ ）．
【简答题】Priscilla Ouchida' s "energy-___1___" house turned out to be a horrible dream. When she and her engineer husband married, they built a $100,000, three bedroom home in California. Tightly sealed to pre...
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