甲状腺发育自奇结节和联合突之间中线处的
A.内胚层上皮B.外胚层上皮C.外胚层间充质D.内胚层上皮和外胚层上皮E.外胚层上皮和外胚层间充质

相关专题: 外胚层  

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  • 甲状腺发育自奇结节和联合突之间中线处的
    A.内胚层上皮B.外胚层上皮C.外胚层间充质D.内胚层上皮和外胚层上皮E.外胚层上皮和外胚层间充质
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  • 以下说法正确的是(  )。

    A、舌被覆内胚层上皮

    B、舌被覆外胚层上皮

    C、舌前2/3被覆外胚层上皮,舌后1/3被覆内胚层上皮

    D、舌被覆中胚层上皮

    E、舌前2/3被覆内胚层上皮,舌后1/3被覆外胚层上皮

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  • 皮样囊肿起源于()

    A、神经内胚层

    B、神经外胚层

    C、神经中胚层

    D、中、外胚层

    E、内、中、外胚层

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  • It is because she is too young ______ she does not know how to deal with the situation.

    A. so

    B. that

    C. so that

    D. therefore
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    A. off 发出,发光

    B. up 放弃

    C. in 屈服

    D. away
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    A. taken

    B. made

    C. placed

    D. held
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  • I hate those people who think they are superiorme without any reason.
    A. at B. on C. to D. than
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    A. special B. especial C. essential D. exceptional
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